catalog 9203-1 - MacLean-Fogg Component Solutions

The ESNA ®StoryThe ESNA ® story began in 1927, when a young engineer named Carl Arthur Swanstromcame to this country from Sweden. He brought with him a license to manufacture and sella unique new self-locking fastener. The Inventor called the new fastener an “ElasticStop ® nut” because the nut remained “stopped” anywhere along the bolt threads. A nondamaginginsert, fitted into the top of the nut, gripped the bolt threads firmly, holding thenut in position without seating against the work or using secondary locking devices.The only problem with the new nut was the inability to mass produce them. The next fewyears were spent perfecting a automatic assembly machine to insert the locking deviceinto the top of the nut. Swanstrom perfected the machine in the early 1930’s and onlyfour years later the Elastic Stop ® Nut Corporation of America was founded.A threaded fastener, able to positively resist the loosening effect of vibration, had longbeen sought by manufacturers of every type of equipment. The Elastic Stop ® nut provedto be the answer—totally reliable, able to reduce maintenance costs and prevent equipmentfailure.The outstanding performance of the Elastic Stop ® nut was further substantiated in 1943when the Air Force tested and issued the first approval letter to use ESNA ® fasteners onmilitary aircraft, both fuselage and engines. During WWII billions of Elastic Stop ® nutswere produced for every branch of the armed services. A staggering number of applicationsfollowed on ground support and electronic equipment.In the years that followed, the ESNA ® line of standard products expanded to over 25,000parts. New types of self-locking fasteners were introduced to the product line. . . TheEslok ® , self-locking hex nuts for low cost commercial grade applications, and the Collarlok® , a hex nut with a 360° bonded nylon collar for high speed automatic assembly techniques.All metal locknuts were developed for applications with high heat or weight reductionrequirements.This diversified line of reliable fastener products has provided Elastic Stop ® nut with asolid foundation for long term stability and future growth.The ESNA ® product line may be found in farm, automotive, mining, aerospace, marineand electrical assemblies of all types.In 1995, Elastic Stop ® nut became a part of MacLean-Fogg ® and MacLean-ESNA wascreated. The following pages describe many of the products produced in a 120,000 squarefoot facility in Pocahontas, Arkansas. MacLean-Fogg/MacLean-ESNA represent a companywith capabilities unparalleled in the fastener industry.2

MACLEAN-ESNA FASTENERS FOR VARIOUS APPLICATIONSMacLean-ESNA is committed to the Design, Development,and Production of the world’s most reliable Standardand Special Self-Locking fasteners.ESNA ® Engineering, Test Laboratories, Manufacturing,and Sales Groups are located in Pocahontas, Arkansasspecializing in the manufacture of the famous ESNA ®red nylon insert self-locking fasteners for use on commercial-industrialapplications. This plant offers themanufacturing community the most complete and reliableline of self-locking fasteners available today.As the pioneer manufacturer of self-locking fasteners,ESNA ® offers the benefits of more than 60 years experiencein the design and manufacture of vibration and impactproof fasteners. The extensive ESNA ® line includesstandard and high tensile, extra thin, MIL approved parts,designed for the most difficult fastening applications.ESNA ® has also created full lines of miniaturized selflockingparts, such as hex and clinch nuts, for the electronicsindustry. When specifying for your project, pleasecontact our engineering specialist for an immediate replyand solution to your fastening problem.The complex requirements of industry has created multiplelines of self-locking Elastic Stop ® nuts to meet therigid engineering demands. Characteristics such as shape,material, finish, strength, weight, and temperature limits,all within strict dimensional limits can be provided in thewide range of ESNA ® available parts. If the part neededis not shown, contact our Technical Sales Department forassistance. Additional hundreds of special and standarddesigns (not shown) are readily available for review. Becauseof our manufacturing capabilities, ESNA ® has theability to provide precision screw machine products toyour specifications.FOR COMPLETE COVERAGE OF YOUR FASTENER DESIGN REQUIREMENTSESNA ® OFFERSFOUR SUPERIORLOCKING DEVICESESNARED NYLON LOCKING INSERTApplications to 350°FESLOKRED NYLON LOCKING PATCHApplications to 250°FCOLLARLOKRED NYLON LOCKING COLLARApplications to 250°FESNA ALL-METALELLIPTICALLY OFF-SET CROWNApplications to 1400°FEACH OF THESE ESNA ® LOCKING DEVICES FULLY MEET THE VIBRATIONAND REUSE REQUIREMENTS OF SPECIFICATION NASM25027ESNA ® NYLON INSERT TYPE—The controlled inside diameter of the red nylon insert and the nylon material itself in the key to the selflockingeffectiveness of the fastener. The ESNA ® self-locking nut is free spinning until the bolt enters the locking insert . The bolt threads thenimpress (not cut) mating threads in the nylon. The resulting compression grip forces metal-to-metal contact between the nut and bolt threads.This friction grip plus the nylon compression assures that the nut will stay “put” anywhere on the bolt and maintain the pre-set torque tensionrelationship. Elastic Stop ® nuts may be reused through more than 50 on-off application cycles.ESLOK ® LOCKING PATCH TYPE—A controlled amount of red nylon is permanently bonded to the threads of a standard hex nut. Thenylon is bonded to the center threads of the nut to permit either end entry of the bolt for automatic machine assembly. Parts are easily removedwith a wrench and may be reused up to 5 times. No metal is removed or distorted insurin g the tensile strength and non-galling characteristics ofan ESNA ® self-locking fastener. An excellent low cost commercial hex nut for all types of heavy duty applications.COLLARLOK ® BONDED NYLON LOCKING COLLAR—The latest ESNA ® prevailing torque hex or flange nut design offers the reusecharacteristics of the proven ESNA ® insert type. A red nylon collar bonded into the head of the nut provides a prevailing torque type nut withthe advantage of high speed assembly using automatic assembly tools. The non-galling collar offers superior vibration performance in standardor metric threads. Collarlok ® is available in a variety of hex designs including low height flange type for bearing retaining applications.ESNA ® ALL-METAL ELLIPTICALLY DEFORMED TYPE—A reduced height, thin walled, light weight series of Elastic Stop ® nutsincorporates an elliptically deformed locking device in the upper portion of the nut body. The carefully controlled degree of deflection in thetop of the nut provides the reliable locking grip on the bolt. Assembly and removal are smooth and non-galling after use at elevated temperatures.Depending on the configuration, material, and finish the lightweight parts can be used at temperatures of up to 1400°F.3

CONTENTSForward—The ESNA ® Story 2Elastic Stop ® Nut Locking Devices 3Indexes to Engineering Standards and Drawings 4Product Reliability 5ESNA ® Headquarters 6Alphabetical—Numerical Index 7Visual Index 8 - 10AN-NAS-MS Table 12Visual Index - Section 1 Wrenchable Fasteners 27Section 2 Self-Retaining Fasteners 69Section 3 Engineering Data 84INDEXES TOENGINEERING STANDARD DRAWINGSSECTION 1 - INDUSTRIAL FASTENERS . . . . . . . . . . . . 27Wrenchable nuts: Standard, miniature and reduced hex designswith nylon inserts, Eslok and Collarlok hexwith bonded locking devices.SECTION 2 - ELECTRONIC FASTENERS . . . . . . . . . . . .69Self-Retaining nuts: Standard and miniature designs both fixedand floating including clinch nuts, inserts,right angle brackets and self-retaining clipon nuts.ENGINEERING DATASECTION 3Military Service Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Gaging of Internal Screw Threads. . . . . . . . . . . . . . . . . . . . . . . 85Nylon Locking Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87Angularity of Thread Axis . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89ENGINEERING REPORTSAs a result of fifty years of hands-on experience in solving specialfastening problems and developing unique self-locking nutdesigns, ESNA ® engineers have compiled numerous EngineeringReports pertinent to the application, installation, and performanceof Elastic Stop ® nuts. Two of the most useful ER reports areavailable on this catalog CD:Loosening of Fasteners by Vibration . . . . . . . . . . . . ER272-2177Nylon Locknut Performance Report . . . . . . . . . . . . .ER115-17454

VIBRATIONPERFORMANCEPRODUCT RELIABILITYThe pursuit of improved standards of reliability and performance are dynamicand continuing assignments at ESNA ® . It is a fact that the fiberinsert Elastic Stop ® nut was the first prevailing torque locknut in the1930’s. ESNA ® also manufactured the first fastener to be approved tospecification AN-N-5. For twenty years it was the Standard of locknutperformance until ESNA ® again pioneered the development of Red Nylonas a locking insert - advancing locknut vibration and reuse capabilitiesa quantum leap.ESNA ® Engineers have devised a readily reproducedvibration test procedure, which hasgained widespread recognition as a standard inthe industry, for evaluating locknut vibrationperformance. Test equipment and test fixturesare available for customers who wish to testtheir fasteners vs Elastic Stop ® nuts. Picturedon the right is the Sonntag Universal Fatiguemachine on which vibration tests are conducted.Fasteners are tightened onspool-like arbors, and theirhigh-frequency vibration isexcited by blows against thearbors.The illustration above and to the left, shows a “looseconnection” test fixture for use on the Sonntag Fatiguemachine. Tests may be conducted with samplelocknuts “tight” against the unit, or “loose” and freeto impact within the arbor slots. The “loose” assemblyis the most severe test and a truer measure oflocking effectiveness of the nut device, as there is nometal-to-metal seating torque to overcome.5

ALPHABETICAL - NUMERICAL INDEXCastellated - Hex (NE4717) (NE4753) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58COLLARLOK - Hex, Flange Base (CE12698 Series) . . . . . . . . . . . . . . . . . . . . 61COLLARLOK - Hex, Metric (CE20136 Series) . . . . . . . . . . . . . . . . . . . . . . . . 60COLLARLOK - Hex, Flange Base, Thin (CE12605 Series) . . . . . . . . . . . . . . . 62COLLARLOK - Hex, Heavy (CU Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63COLLARLOK - Hex, Heavy (CBR32 Series) . . . . . . . . . . . . . . . . . . . . . . . . . . 64Double Hex - High Tensile (NH Series) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59Eslok 30000 Series - Grade A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Eslok 31300 Series - Grade B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Hex - Light (ZE1801) (ZE1802) (ZE1803) (ZE1813) . . . . . . . . . . . . . . . . . . . . 57Hex SP(1) Hex, Consolidated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44K1- K2 - K3 Hex, Metal Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56LE141309/LE141334 Hex, All Metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47LE141332/LE141333 Hex, All Metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49LH1660 Hex, Miniature, All Metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29MONEL (NM) Hex, Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42MONEL (NE) Hex, Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42MONEL (NU) Hex, Heavy, (NU13841) and (VU13841) . . . . . . . . . . . . . . . . . 43M2297 Hex, Reduced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30NC Clinch, Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77NCFMA Clinch, Flush Mounting, Miniature . . . . . . . . . . . . . . . . . . . . . . . . . . . 71NC4284 Clinch, Floating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75ND Nut, Spline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82NE Hex, Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31NE141252/NE141310 Hex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51NE141253/NE141316 Hex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53NKCFM Clinch, Miniature, Nylon Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73NKE Hex, Light, Nylon Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55NKM Hex, Light, Nylon Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55NKTE Hex, Light, Nylon Cap, Thin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55NKTM Hex, Light, Nylon Cap, Thin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55NM Hex, Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31NM107 Hex, Reduced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30NM408 Hex, Reduced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30NM2234 Hex, Reduced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30NTE Hex, Light, Thin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35NTM Hex, Light, Thin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35NU Hex, Heavy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38NTU Hex, Heavy, Thin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40N1260 Hex, Thick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45N1610 Hex, High Tensile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46TEE2032 Hex, Reduced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301660 Hex, Miniature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

VISUAL INDEXSECTION 1INDUSTRIAL FASTENERSSELECTING THE CORRECTWRENCHABLE SELF-LOCKINGNUTS FOR YOUR APPLICATIONEach Elastic Stop ® nut illustrated differs insome significant characteristic such as dimensions,material, finish, strength, weightand temperature limits. Each is a standardpart in the ESNA ® self-locking fastener line.This wide range of available parts gives thedesign engineer the advantage of beingable to select the exact features most importantto his individual requirements. ESNA ®also has hundreds of additional standardand special self-locking fasteners includingmetric designs which are available throughour Technical Service and Product DesignDepartments in Pocahontas, Arkansas.Please submit your fastening problems forprompt analysis and reply.NM, NENTM, NTENUNTUHEX, MONEL(NM),(NE)HEX, MONELNU13841VU13841HEX SP (1)N1260N1610NU1610REGULAR HEX, LIGHT1-72 THRU 1½-12 TO 350°FMS20365, NASM21044, NAS1021,NASM17830Page 31REGULAR HEX, LIGHT, THIN2-56 THRU 1½-12 TO 350°FMS20364, NAS1022, NASM21083,AN364HEAVY HEX¼-20 THRU 2½-8 TO 350°FHEAVY HEX, THIN¼-20 THRU 2½-12 TO 350°FNASM16228REGULAR HEX, MONEL4-40 THRU 1½-12 TO 350°FNASM17828Page 35Page 38Page 40Page 42HEAVY HEX, MONEL¼-20 THRU 2½-4½ TO 350°F AND450°FNASM17828SPECIAL HEXCONSOLIDATION3/8 - 16 THRU 2-12 TO 350°FPage 43Page 44REGULAR HEX, HIGH TENSILE,EXTRA THREAD LENGTH3 /8 - 24 THRU 1¼-12 TO 350°FREGULAR HEX,HIGH TENSILE10-32 THRU 2½-4 TO 350°FNASM17829Page 451660MINIATURE HEX0-80 THRU 4-48 TO 350°FLM/LE141309LM/LE141334HEX, ALL METAL0-80 THRU 1½-12 TO 350°FUNC/UNF - 2BMIL-DTL-45913/4Page 46LH1660MINIATURE HEXHIGH TEMPERATURE2-56 THRU 6-40 TO 450°FAND 800°FPage 28LM/LE141332LM/LE141333HEX, ALL METAL0-80 THRU 1½-12 TO 350°FUNC/UNF - 3BMIL-DTL-45913/2Page 47TEE2032, NM2234, NM107,NM408,M2297Page 29REDUCED DIMENSION HEX6-32 THRU ¼-28 TO 350°FPage 30NM/NE141252NM/NE141310HEX, NYLON INSERT0-80 THRU 1½-12 TO 350°FUNC/UNF - 2BMIL-DTL-45913/1Page 49Page 518

NM/NE141253NM/NE141316NKM, NKTMHEX, NYLON INSERT0-80 THRU 1½-12 TO 350°FUNC/UNF - 3BMIL-DTL-45913/3Page 53REGULAR HEX, MACHINESCREW, NYLON CAP4-40 THRU 10-32 TO 350°FCOLLARLOKCE20136®RED NYLONLOCKING COLLARCOLLARLOK, HEX,FLANGE, METRICM6 X 1.0 THRU M20 X 2.5 TO 250°FNKE, NKTEREGULAR HEX, NYLONCAP¼-28 THRU 7 /16-20 TO 350°FPage 55CE12698COLLARLOK, HEX,FLANGE3 /8-16 THRU 3 /4-10 TO 250°FPage 60Page 55Page 61K1, K2, K3REGULAR HEX, METALCAP (NYLON INSERT)6-32 THRU 3 /8-24 TO 350°FCE12605COLLARLOK, HEX,FLANGE1¼-12 THRU 1 3 /4-12 TO 250°FZ1801Z1813Z1802Page 56HEX, LIGHT, HIGHTEMPERATURE4-40 THRU 3 /4-16 TO 450°F AND800°FAN363, MS20365, MS21045,MS21046, NAS1021Page 57HEX, LIGHT, HIGHTEMPERATURE8-32 THRU ½-20 TO 1200°FCUCBR32Page 62COLLARLOK, HEX, HEAVY5 /8-11 THRU 1-8 TO 250°FCOLLARLOK, BEARINGRETAINERN00 THRU N14 TO 250°FPage 63MS20500Z1803NE4717NE4753Page 57HEX, LIGHT, HIGHTEMPERATURE4-40 THRU 5 /8-18 TO 450°F AND800°FAN363, MS20365, MS21045,MS21046, NAS1021Page 57HEX, CASTELLATEDSELF-LOCKING10-32 THRU 1-12 TO 350°FESlok ®ESlok 30000GRADE APage 64RED NYLONLOCKING PATCHNUT, FINISHED HEXAGONSELF LOCKING5 /8-11 THRU 1-14 TO 250°FMS17825, MS17826NHDOUBLE HEX, HIGHTENSILE (180,000 PSI)¼-28 THRU 1½-12 TO 350°FPage 58ESlok 31300GRADE BPage 66NUT, HEXAGON, THICKSELF LOCKING5 /8-11 THRU 1-14 TO 250°FPage 59Page 67SERVICE APPROVALSESNA ® products approved for use on Military Applications canbe found on the following Qualified Products Lists:QPL-25027QPL-7873QPL-8892QPL-8894QPL-8895Understandably, these documents can not be revised and reissuedas often as necessary to cover the very latest approvalstatus of ESNA ® products. Thus, interim approval letters areissued by the Military, which remain in effect for recently qualifieditems until the next reprinting of the applicable qualifiedproducts list.9

VISUAL INDEXNCFMANKCFMMINIATURE, CLINCH, FLUSHMOUNTING ANDINSTALLATION TOOLS2-56 THRU 10-32 TO 350°FNASM45938/5Page 71MINIATURE, CLINCH, FLUSHMOUNTING, NYLON CAP ANDINSTALLATION TOOLS2-56 THRU 10-32 TO 350°FSECTION 2ELECTRONIC FASTENERSSELECTING THE CORRECT SELF-RETAINING, SELF-LOCKING NUTSFOR YOUR APPLICATIONThe complex requirements of the Aircraft-Aerospace has created multiple lines of selflockingElastic Stop ® nut Anchor type nutsto meet the rigid engineering demands.Characteristics such as shape, material, finish,strength, weight, and temperature limits,all within strict dimensional limits, can beprovided in the wide range of ESNA ®“available” parts. The Aerospace designerhas only to select from this listing to resolvea large part of his assembly problems, however,if the part needed is not shown in thiscatalog, he is invited to contact our TechnicalSales Department for assistance. Additionalhundreds of special designs (notshown) are readily available for review.NC4284NCNDPage 73MINIATURE, CLINCH, FLUSHMOUNTING, FLOATING ANDINSTALLATION TOOLS4-40 THRU 10-32 TO 350°FPage 75STANDARD CLINCH ANDNSTALLATION TOOLS4-40 THRU 5 /16-24 TO 350°FNASM45938/8SPLINE8-32 THRU ½-20 TO 350°FMS51866Page 77Page 8210

CONSIDER EXTRA-THIN TYPES OF ELASTIC STOP ® NUTSFOR BEARING RETAINING APPLICATIONSTHESE ARE THE BENEFITS AND ECONOMIES ACHIEVED BY USINGREGULAR ELASTIC STOP NUTS FOR BEARING RETAINING APPLICATIONS:1. Lower total manufacturing costs result from toolingand machining standard SAE threads on shaft inplace of special extra-fine bearing locknut threads.2. Lower manufacturing costs result from elimination ofcross-drilling of shaft for cotter pin holes or milling aslot in shaft for a tab washer.3. Easier assembly; a stop nut can be clamped-up astightly as you specify, in a single operation. Selflockingnut does not require re-adjustment to permitcotter pin location.4. Nylon insert’s non-destructive locking grip does notgall or in any way distort costly shaft threads.5. Removal and reuse is a simple matter of wrenchingoff-on.6. There is no safety device for the workman or maintenanceworker to forget. The ESNA ® “safety” deviceis built in.7. The unavoidable “play” in a cotter-pinned adjustmentaccelerates wearing of the gears, bearings or otherfastened members. Service life is extended andbearing wear is minimized as a result of the constantclamping action maintained by the nylon insert.An ESNA bearing-type nut applied to the output shafton a heavy -duty truck transmission. It replaced acastle nut and cotter pin fastening.11

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2MSANNASCONVERSION TABLESThe following AN-MS-NAS StandardPart Listing is provided in numerical sequencefor ESNA ® customers who wishto determine the equivalent ESNA ® partnumber.12

AN256-6AN256-8AN256-10AN256F6AN256F8AN256F10AN362C524AN362C624AN363-624AN363-720AN363-820AN363-918AN363-1018AN363-1216AN363C632AN363C832AN363C1032AN363C428AN363C524AN363C624AN363C720AN363C820AN363C918AN363C1018AN364-632AN364-632AAN364-832AN364-832AAN364-1032AN364-1032AAN364-428AN364-428AAN364-524AN364-524AAN364-624AN364-624AAN364-720AN364-720AAN364-820AN364-820AAN364-918AN364-918AAN364-1018AN364-1018AAN364-1216AN364-1216AAN364-1414AN364-1414AAN364-1614AN364-1614AAN364-1812AN364-1812AAN364-2012AN364-2012AAN364B1032AN364B1032AAN364B428AN364B428AAN364B524AN364B524AAN364B624AN364B624AAN364B720AN364B720A68NA7-68-6268NA7-68-8268NA7-68-02F22NA7-68-62F22NA7-68-82F22NA7-68-0270ZA1W-05470ZA1-064F1801-064F1801-070F1801-080F1801-098F1801-108F1801-1261803-621803-821803-021803-0481803-0541803-0641803-0701803-0801803-0981803-108F22NTM-62F22NTM-62F22NTM-82F22NTM-82F22NTM-02F22NTM-02F52NTE-048F52NTE-048F52NTE-054F52NTE-054F52NTE-064F52NTE-064F52NTE-070F52NTE-070F52NTE-080F52NTE-080F52NTE-098F52NTE-098F52NTE-108F52NTE-108F52NTE-126F52NTE-126F52NTE-144F52NTE-144F52NTE-164F52NTE-164F52NTE-182F52NTE-182F52NTE-202F52NTE-20299NTM-0299NTM-0299NTE-04899NTE-04899NTE-05499NTE-05499NTE-06499NTE-06499NTE-07099NTE-070ESNANomenclatureAN/MS/NASStandard PartsAN/MS/NASStandard PartsESNANomenclatureAN364B820AN364B820AAN364B918AN364B918AAN364B1216AN364B1216AAN364B1414AN364B1414AAN364B1614AN364B1614AAN364B1812AN364B1812AAN364B2012AN364B2012AAN364D632AN364D632AAN364D832AN364D832AAN364D1032AN364D1032AAN364D428AN364D428AAN364D524AN364D524AAN364D624AN364D624AAN364D720AN364D720AAN364D820AN364D820AAN364D918AN364D918AAN364D1018AN364D1018AAN364D1216AN364D1216AAN364D1414AN364D1414AAN364D1614AN364D1614AAN364D1812AN364D1812AAN364D2012AN364D2012AAN365-624CAN365-720CAN365-820CAN365-918CAN365-1018CAN365-1216CAN365-1414CAN365-1614CAN365-440AN365-440AAN365-632AN365-632AAN365-832AN365-832AAN365-1032AN365-1032AAN365-428AN365-428AAN365-524AN365-524AAN365-62499NTE-08099NTE-08099NTE-09899NTE-09899NTE-12699NTE-12699NTE-14499NTE-14499NTE-16499NTE-16499NTE-18299NTE-18299NTE-20299NTE-20268NTM-6268NTM-6268NTM-8268NTM-8268NTM-0268NTM-0268NTE-04868NTE-04868NTE-05468NTE-05468NTE-06468NTE-06468NTE-07068NTE-07068NTE-08068NTE-08068NTE-09868NTE-09868NTE-10868NTE-10868NTE-12668NTE-12668NTE-14468NTE-14468NTE-16468NTE-16468NTE-18268NTE-18268NTE-20268NTE-202F1801-064F1801-070F1801-080F1801-098F1801-108F1801-126F1801-144F1801-164F22NM-40F22NM-40F22NM-62F22NM-62F22NM-82F22NM-82F22NM-02F22NM-02F42NE-048F42NE-048F42NE-054F42NE-054F52NE-064ESNANomenclatureAN/MS/NASStandard PartsESNANomenclatureAN/MS/NASStandard 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1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L214

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Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L215

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Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L216

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Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L217

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Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L218

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®CONVERSION TABLESNAS1028N06KNAS1028N08NAS1028N08KNAS1028N3NAS1028N3KNAS1028N4NAS1028N4KNAS1028N5NAS1028N5KNAS1028N6NAS1029D5KNAS1029N06NAS1029N06KNAS1029N08NAS1029N08KNAS1029N3NAS1029N3KNAS1029N4NAS1029N4KNAS1029N5NAS1029N5KNAS1030N06NAS1030N06KNAS1030N08NAS1030N08KNAS1030N3NAS1030N3KNAS1030N4NAS1030N4KNAS1031D06NAS1031D06KNAS1031D08NAS1031D08KNAS1031D3NAS1031D3KNAS1031D4NAS1031D4KNAS1031N06NAS1031N06KNAS1031N08NAS1031N08KNAS1031N3NAS1031N3KNAS1031N4NAS1031N4KNAS1031N5NAS1031N5KNAS1031N6NAS1031N6KNAS1031N7NAS1031N8NAS1032N08NAS1032N08KNAS1032N3NAS1032N3KNAS1032N4NAS1032N4KNAS1033D06NAS1033D06KNAS1033D08NAS1033D08KNAS1033D3NAS1033D3KNAS1033N06611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L223

NAS1033N06KNAS1033N08NAS1033N08KNAS1033N3NAS1033N3KNAS1033N4NAS1033N4KNAS1033N5NAS1033N5KNAS1291-02NAS1291-04NAS1291-06NAS1291-08NAS1291-3NAS1291-4NAS1291-5NAS1291-6NAS1291-7NAS1291-8NAS1291-10NAS1291C02NAS1291C02MNAS1291C04NAS1291C04MNAS1291C06NAS1291C06MNAS1291C08NAS1291C08MNAS1291C3NAS1291C3MNAS1291C4NAS1291C4MNAS1291C5NAS1291C5MNAS1291C6NAS1291C6MNAS1291C7NAS1291C7MNAS1291C8NAS1291C8MNAS1291X02NAS1291X04NAS1291X06NAS1291X08NAS1291X3NAS1291X4NAS1291X5NAS1291X6NAS1291X7NAS1291X8NAS1291X10NAS1473A08NAS1473A3NAS1473A4NAS1473A5NAS1473C08NAS1473C3NAS1474A3NAS1474A4NAS1474C06NAS1474C08NAS1474C3NAS1474C4NAS1474A82F22NA27-22-62BCF22NA27-22-82F22NA27-22-82BCF22NA27-22-02F22NA27-22-02BCF42NA27-22-048F22NA27-22-048BCF42NA27-22-054F22NA27-22-054BCRM52LH3324-26RM52LH3324-40RM52LH3324-62RM52LH3324-82RM52LH3324-02RM52LH3324-048RM52LH3324-054RM52LH3324-064RM52LH3324-070RM52LH3324-080RM52LH3324-108LH3858-26RMLH3858-26LH3858-40RMLH3858-40LH3858-62RMLH3858-62LH3858-82RMLH3858-82LH3858-02RMLH3858-02LH3858-048RMLH3858-048LH3858-054RMLH3858-054LH3858-064RMLH3858-064LH3858-070RMLH3858-070LH3858-080RMLH3858-080F52LH3324-26F52LH3324-40F52LH3324-62F52LH3324-82F52LH3324-02F52LH3324-048F52LH3324-054F52LH3324-064F52LH3324-070F52LH3324-080F52LH3324-108FMA2502-82FMA2502-02FMA2502-048FMA2502-054A4508-82A4508-02MA2506-02MA2506-048A4506-62A4506-82A4506-02A4506-048A2506-82ESNANomenclatureAN/MS/NASStandard PartsAN/MS/NASStandard PartsESNANomenclatureNAS1474X3NAS1757L8NAS1757L9NAS1757L10NAS1757L12NAS1757L14NAS1757L16NAS1757L18NAS1757L20NAS1757-8NAS1757-9NAS1757-10NAS1757-12NAS1757-14NAS1757-16NAS1757-18NAS1757-20NAS1758L3NAS1758L4NAS1758L5NAS1758L6NAS1758L7NAS1758L8NAS1758L9NAS1758L10NAS1758L12NAS1758L14NAS1758L16NAS1758L18NAS1758L20NAS1758L22NAS1758L24NAS1759-3NAS1759-4NAS1759-5NAS1759-6NAS1759-7NAS1759-8NAS1759-9NAS1759-10NAS1759-12NAS1759-14NAS1759-16NAS1759-18NAS1759-20NAS1759-22NAS1759-24NAS1759L3NAS1759L4NAS1759L5NAS1759L6NAS1759L7NAS1759L8NAS1759L9NAS1759L10NAS1759L12NAS1759L14NAS1759L16NAS1759L18NAS1759L20NAS1759L22NAS1759L24NAS1765-3NAS1765-3CNAS1765-3CLNAS1765-4F52MA2506-02RMLH12284-8RMLH12284-9RMLH12284-10RMLH12284-12RMLH12284-14RMLH12284-16RMLH12284-18RMLH12284-20LH12284-8LH12284-9LH12284-10LH12284-12LH12284-14LH12284-16LH12284-18LH12284-20LH11848-3LH11848-4LH11848-5LH11848-6LH11848-7LH11848-8LH11848-9LH11848-10LH11848-12LH11848-14LH11848-16LH11848-18LH11848-20LH11848-22LH11848-24L55LH6520-02L55LH6520-048L55LH6520-054L55LH6520-064L55LH6520-070L55LH6520-080L55LH6520-098L55LH6520-108L55LH6520-126L55LH6520-144L55LH6520-162L55LH6520-18L55LH6520-20L55LH6520-22L55LH6520-24RMLH6520-3RMLH6520-4RMLH6520-5RMLH6520-6RMLH6520-7RMLH6520-8RMLH6520-9RMLH6520-10RMLH6520-12RMLH6520-14RMLH6520-16RMLH6520-18RMLH6520-20RMLH6520-22RMLH6520-24RM52LHA3022-02101F9224-3104F9224-3RM52LHA3022-048ESNANomenclatureAN/MS/NASStandard PartsESNANomenclatureAN/MS/NASStandard 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®CONVERSION TABLESNAS1792C4-4NAS1792C4-5NAS1792C4-6NAS1792C5-1NAS1792C5-2NAS1792C5-3NAS1792C5-4NAS1792C5-5NAS1792C5-6NAS1792A3-1NAS1792A3-2NAS1792A3-3NAS1792A3-4NAS1792A3-5NAS1792A3-6NAS1792A4-1NAS1792A4-2NAS1792A4-3NAS1792A4-4NAS1792A4-5NAS1792A4-6NAS1792A5-1NAS1792A5-2NAS1792A5-3NAS1792A5-4NAS1792A5-5NAS1792A5-6NAS1793A3-1NAS1793A3-2NAS1793A3-3NAS1793A3-4NAS1793A3-5NAS1793A3-6NAS1793A4-1NAS1793A4-2NAS1793A4-3NAS1793A4-4NAS1793A4-5NAS1793A4-6NAS1793A5-1NAS1793A5-2NAS1793A5-3NAS1793A5-4NAS1793A5-5NAS1793A5-6NAS1793C3-1NAS1793C3-2NAS1793C3-3NAS1793C3-4NAS1793C3-5NAS1793C3-6NAS1793C4-1NAS1793C4-2NAS1793C4-3NAS1793C4-4NAS1793C4-5NAS1793C4-6NAS1793C5-1NAS1793C5-2NAS1793C5-3NAS1793C5-4NAS1793C5-5611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L224

NAS1793C5-6NAS1794A3-1NAS1794A3-2NAS1794A3-3NAS1794A3-4NAS1794A3-5NAS1794A3-6NAS1794A4-1NAS1794A4-2NAS1794A4-3NAS1794A4-4NAS1794A4-5NAS1794A4-6NAS1794A5-1NAS1794A5-2NAS1794A5-3NAS1794A5-4NAS1794A5-5NAS1794A5-6NAS1802-3A10CNAS1803B12CNAS1803-3A1NAS1803-3A2NAS1803-3A3NAS1803-3A4NAS1803-3A5NAS1803-3A6NAS1803-3A7NAS1803-3A8NAS1803-3A9NAS1803-3A10NAS1803-3A11NAS1803-3A12NAS1803-3A13NAS1803-3A1CNAS1803-3A2CNAS1803-3A3CNAS1803-3A4CNAS1803-3A5CNAS1803-3A6CNAS1803-3A7CNAS1803-3A8CNAS1803-3A9CNAS1803-3A10CNAS1803-3A12CNAS1803-3A13CNAS1803-3BACNAS1803-3B1NAS1803-3B2NAS1803-3B3NAS1803-3B4NAS1803-3B5NAS1803-3B6NAS1803-3B7NAS1803-3B8NAS1803-3B9NAS1803-3B10NAS1803-3B11NAS1803-3B1CNAS1803-3B2CNAS1803-3B3CNAS1803-3B4CF18425L6-5G14421-1-3G14421-2-3G14421-3-3G14421-4-3G14421-5-3G14421-6-3G14421-1-4G14421-2-4G14421-3-4G14421-4-4G14421-5-4G14421-6-4G14421-1-5G14421-2-5G14421-3-5G14421-4-5G14421-5-5G14421-6-5F11886-16-02F11885-18-3A6792-9-02A6792-10-02A6792-11-02A6792-2-02A6792-3-02A6792-12-02A6792-13-02A6792-14-02A6792-15-02A6792-16-02A6792-17-02A6792-18-02A6792-19-02F11886-9-3F11886-10-3F11886-11-3F11886-2-3F11886-3-3F11886-12-3F11886-13-3F11886-14-3F11886-15-3F11886-16-3F11886-18-3F11886-19-3F11885-10-02A6293-9-02A6293-10-02A6293-11-02A6293-2-02A6293-3-02A6293-12-02A6293-13-02A6293-14-02A6293-15-02A6293-16-02A6293-17-02F11885-9-3F11885-10-3F11885-11-3F11885-2-3ESNANomenclatureAN/MS/NASStandard PartsAN/MS/NASStandard PartsESNANomenclatureNAS1803-3B5CNAS1803-3B6CNAS1803-3B7CNAS1803-3B8CNAS1803-3B9CNAS1803-3B10CNAS1803-3B11CNAS1803-3B12CNAS1803-3B13CNAS1803-4B1NAS1803-4B2NAS1803-4B3NAS1803-4B4NAS1803-4B5NAS1803-4B6NAS1803-4B7NAS1803-4B8NAS1803-4B10NAS1803-4B11NAS1803-4B12NAS1803-4B13NAS1804-3NAS1804-4NAS1804-5NAS1804-6NAS1804-7NAS1804-8NAS1804-9NAS1804-10NAS1804-12NAS1804-14NAS1804-18NAS1804-20NAS1804-22NAS1804-24NAS1804-28NAS1804-32NAS1804-3NNAS1804-4NNAS1804-5NNAS1804-6NNAS1804-7NNAS1804-8NNAS1804-9NNAS1804-10NNAS1804-12NNAS1804-14NNAS1804-16NNAS1804-18NNAS1804-20NNAS1804-22NNAS1804-24NNAS1804-32NNAS1805-3NAS1805-4NAS1805-5NAS1805-6NAS1805-7NAS1805-8NAS1805-9NAS1805-10NAS1805-12NAS1805-14NAS1805-16NAS1805-18NAS1805-20NAS1805-22NAS1805-24F11885-3-3F11885-12-3F11885-13-3F11885-14-3F11885-15-3F11885-16-3F11885-17-3F11885-18-3F11885-19-3A6293-09-048A6293-10-048A6293-11-048A6293-2-048A6293-3-048A6293-12-048A6293-13-048A6293-14-048A6293-16-048A6293-17-048A6293-18-048A6293-19-048RMLH18A-3RMLH18A-4RMLH18A-5RMLH18A-6RMLH18A-7RMLH18A-8RMLH18A-9RMLH18A-10RMLH18A-12RMLH18A-14RMLH18A-18RMLH18A-20RMLH18A-22RMLH18A-24RMLH18A-28RMLH18A-32LH18A-3LH18A-4LH18A-5LH18A-6LH18A-7LH18A-8LH18A-9LH18A-10LH18A-12LH18A-14LH18A-16LH18A-18LH18A-20LH18A-22LH18A-24LH18A-32109LH8574A-3109LH8574A-4109LH8574A-5109LH8574A-6109LH8574A-7109LH8574A-8109LH8574A-9109LH8574A-10109LH8574A-12109LH8574A-14109LH8574A-16109LH8574A-18109LH8574A-20109LH8574A-22109LH8574A-24ESNANomenclatureAN/MS/NASStandard PartsESNANomenclatureAN/MS/NASStandard PartsNAS1805-28NAS1805-32NAS1805-3NNAS1805-4NNAS1805-5NNAS1805-6NNAS1805-7NNAS1805-8NNAS1805-9NNAS1805-10NNAS1805-12NNAS1805-14NNAS1805-16NNAS1805-18NNAS1805-20NNAS1805-22NNAS1805-24NNAS1805-28NNAS1805-32NNAS1805-3PNAS1805-4PNAS1805-5PNAS1805-6PNAS1805-7PNAS1805-8PNAS1805-9PNAS1805-10PNAS1805-12PNAS1805-14PNAS1805-16PNAS1805-18PNAS1805-20PNAS1805-22PNAS1805-24PNAS1805-28PNAS1805-32PNAS577-4ANAS577-5ANAS577-6ANAS577-7ANAS577-8ANAS577-9ANAS577-10ANAS577-12ANAS577-14ANAS577-16ANAS577-17ANAS577-4AXNAS577-5AXNAS577-6AXNAS577-7AXNAS577-8AXNAS577-9AXNAS577-10AXNAS577-12AXNAS577-14AXNAS577-16AXNAS577-17AXNAS577B4ANAS577B5ANAS577B6ANAS577B7ANAS577B8ANAS577B9ANAS577B10ANAS577B12ANAS577B14A109LH8574A-28109LH8574A-32121LH8574A-3121LH8574A-4121LH8574A-5121LH8574A-6121LH8574A-7121LH8574A-8121LH8574A-9121LH8574A-10121LH8574A-12121LH8574A-14121LH8574A-16121LH8574A-18121LH8574A-20121LH8574A-22121LH8574A-24121LH8574A-28121LH8574A-32LH8574A-3LH8574A-4LH8574A-5LH8574A-6LH8574A-7LH8574A-8LH8574A-9LH8574A-10LH8574A-12LH8574A-14LH8574A-16LH8574A-18LH8574A-20LH8574A-22LH8574A-24LH8574A-28LH8574A-32RMLH2577-048RMLH2577-054RMLH2577-064RMLH2577-070RMLH2577-080RMLH2577-098RMLH2577-108RMLH2577-126RMLH2577-144RMLH2577-162RMLH2577-164LH2577-048LH2577-054LH2577-064LH2577-070LH2577-080LH2577-098LH2577-108LH2577-126LH2577-144LH2577-162LH2577-1641MLBF577-41MLBF577-51MLBF577-61MLBF577-71MLBF577-81MLBF577-91MLBF577-101MLBF577-121MLBF577-141MLBF577-162577-048RET2577-054RET2577-064RET2577-070RET2577-080RET2577-098RET2577-108RET2577-126RET2577-144RET2577-162RET3320-048RET3320-054RET3320-064RET3320-070RET3320-080RET3320-098RET3320-108RET3320-126RET3320-144RET3320-162RETAN/MS/NAS/ESNA ®CONVERSION TABLESNAS577B16ANAS578-4ANAS578-5ANAS578-6ANAS578-7ANAS578-8ANAS578-9ANAS578-10ANAS578-12ANAS578-14ANAS578-16ANAS578-4BNAS578-5BNAS578-6BNAS578-7BNAS578-8BNAS578-9BNAS578-10BNAS578-12BNAS578-14BNAS578-16B611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L225

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2For more than 70 years ESNA ®has pioneered the design andmanufacture of vibration-proof,self-locking fasteners. Parts rangefrom reduced size, weight-savingdesigns for the electronic andaerospace industry to large highstrength hex nuts for machineryand off-highway vehicles. Whetherstandard or special ESNA’s approvedfastener line can save youtime and money. Select from hundredsof types, sizes, materialsand finishes available.26

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ENGINEERINGSTANDARDSSECTION 1WRENCHABLENUTSPartNumberPageNumberPartNumberPageNumber1660LH1660M2297NM107NM408NM2234TEE2032NM-NENTM-NTENUNTUNM-NE(MONEL)NU13841VU13841HEX SP(1)N1260N1610NU1610LM/LE141309LM/LE141334LM/LE141332LM/LE14133328293030303030313538404243434445464647474949NM/NE141252NM/NE141310NM/NE141253NM/NE141316NKM -NKTMNKE-NKTEK1, K2, K3Z1801-Z1813Z1802Z1803NE4717NE4753NHCE20136CE12698CE12605CUCBR323000031300515153535555565757575858596061626364666727

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PART NUMBERSSTAINLESSSTEELAPPROXWEIGHTLB/100ALUMINUMALLOYAPPROXWEIGHTLB/100BRASSAPPROXWEIGHTLB/100THREADA±.015BMAX - MINCREF* 92-1660-000.0130.0600-80 UNF-3B0.065 0.110 - 0.104 0.119* 68-1660-120.00692-1660-120.0170.0730-72 UNF-3B0.080 0.126 - 0.119 0.13679-1660-26 68-1660-26 92-1660-26 0.0860-56 UNJC-3B0.036 0.012 0.036* 68-1660-24 92-1660-24 0.0860-64 UNJF-3B* 92-1660-38 0.0990-48 UNJC-3B0.021 0.062* 92-1660-36 0.0990-56 UNJF-3B79-1660-40 68-1660-40 92-1660-40 0.1120-40 UNJC-3B0.060 0.020 0.060* 68-1660-48 0.1120-48 UNJF -3B0.0950.1100.1100.157 - 0.1500.189 - 0.1810.189 - 0.1810.1710.2070.207* CONTACT ESNA FOR AVAILABILITY OF STAINLESS STEEL PARTS IN THESE SIZESMATERIAL:ALUMINUM ALLOY - 2011-T3 OR EQUIVALENTBRASS - COMMERCIAL HALF HARD OR EQUIVALENTSTAINLESS STEEL - AISI TYPE 303 OR EQUIVALENTREFERENCE STANDARDS:FINISH:ALUMINUM ALLOY - ALODINE, MIL-C-5541BRASS - CADMIUM PLATE, SAE-AMS-QQ-P416 TYPE I, CLASS 3STAINLESS STEEL - UNPLATEDLOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)THREADS: MIL-S-7742 OR AS887916APPLICATION: TYPE 1660 IS DESIGNED FOR USE ON MANY TYPES OF INSTRUMENTS, ELECTRONICEQUIPMENT, MISSLES, AND RELATED PRODUCTS WHERE DESIGN FACTORS SUCH ASLIMITED INSTALLATION CLEARANCE, WEIGHT REDUCTION, OR SUB-MINIATURIZATIONEFFORTS REQUIRE A SMALL SELF-LOCKING FASTENER.16NUT - HEX, MINIATURE16PJ - 18001660ISSUED: 6 AUG 52 REVISED: 16 3 NOV 200328

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2STEEL, 450°FCADMIUMESNA PART NUMBERSCRES, 800°FSILVERCRES, 800°FUNPLATEDTHREAD±.025REF REF79LH1660-26 0.0860-56 UNJC-3B 0.095 0.157-0.150 0.171 0.05179LH1660-40 0.1120-40 UNJC-3B 0.110 0.189-0.181 0.207 0.045F22LH1660-50 0.1250-40 UNJC-3B 0.120 0.189-0.181 0.207 0.04570LH1660-60 0.1380-40 UNJC-3B 0.140 0.220-0.212 0.233 0.088ABCLMATERIAL:STEELCRES, AISI 303 OR EQUIV.FINISH:F22LH1660-XX CADMIUM PLATE, SAE AMS-QQ-P-416, TYPE II CLASS 270LH1660-XX SILVER PLATE79LH1660-XX UNPLATED, PASSIVATEDTHREADS:AS8879APPLICATION:TYPE LH1660 NUTS ARE DESIGNED FOR USE ON MANY TYPES OF INSTRUMENTS, ELECTRONIC EQUIPMENT, MISSLES ANDRELATED PRODUCTS, WHERE APPLICATION CONDITIONS SUCH AS LIMITED INSTALLATION CLEARANCE, WEIGHT RE-DUCTION, OR SUB-MINIATURIZATION EFFORTS ON ASSEMBLY DESIGNS, MAKE USE OF AN ALL-METAL SELF-LOCKINGNUT DESIRABLE.REFERENCE STANDARDS:9NUT - HEX, MINIATURE, ALL METAL,450°F & 800°F9PJ - 2218-36LH1660ISSUED: 17 JUN 59 REVISED: 9 3 NOV 200329

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PARTNUMBERTHREADA±.010BCREFLREFULTIMATETENSILESTRENGTHLB MINAPPROXWEIGHTLB/10022NM107-62 5000.1430.0810.1497NM107-62 0.1380-32 UNJC-3B0.251-0.243 0.26835079NM408-62 0.133 0.071 560 0.1322NM408-82 1,2000.1640-32 UNJC-3B 0.180 0.313-0.305 0.339 0.1030.2679NM408-82 86079NM408-02 1,2300.1800.1030.2322NM2234-020.1900-32 UNJF-3B0.313-0.305 0.33952M2297-021,5000.1900.1480.3059M2297-0279NM408-048 0.190 2,2900.2500-28 UNJF-3B 0.239 0.376-0.367 0.410 0.4052TEE2032-048 0.200 5,379MATERIAL:“2” STEEL, UNTREATED“5” STEEL, HEAT TREATED TO ROCKWELL C 29-35“7” STAINLESS STEEL, AISI 303 OR EQUIV.“9” BRASS, COMMERCIAL HALF HARDFINISH:“2” CADMIUM PLATE, SAE AMS-QQ-P-416, TYPE I, CLASS 3“7” BRIGHT NICKEL PLATE“9” UNPLATEDLOCKING INSERT:RED NYLON (350° MAX PERFORMANCE)THREADS:AS887912PERFORMANCE:NASM25027 AS APPLICABLE121212F 2 2 NM107 - 62MATERIALFINISHTHREAD SIZENUT TYPEFOR POST PLATE TEATMENT (PER SAEAMS-QQ-P-416, TYPE II) ON CADMIUMPLATED PARTS, PREFIX COMPLETE PARTNUMBER WITH LETTER “F”.APPLICATION:THIS DRAWING LISTS HEXAGONS THAT ARE UNDERSIZED WITH RESPECT TO CONVENTIONAL NUT STANDARDS. THEY AREOFFERED FOR POSSIBLE USE FOR APPLICATIONS WHERE WRENCH CLEARANCES ARE LIMITED. IN ADDITION, TYPE TEE2032-048 HAS BEEN MODIFIED TO PROVIDE AN INCREASED HEX HEIGHT AND IS HEAT TREATED RESULTING IN A PART OF RE-DUCED ENVELOPE, IMPROVED WRENCHING CHARACTERISTICS AND SUPERIOR TENSILE PERFORMANCE. IT IS ESPECIALLYSUITED FOR USE ON APPLICATIONS LIKE CONNECTING ROD CAP BOLTS.12ISSUED: 6 AUG 52 REVISED: 12 3 NOV 2003REFERENCE STANDARDS:NUT - REDUCED HEX,CONSOLIDATED DRAWING30NM107 NM408TEE2032 NM2234M2297

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2STAKE MARKSESNA OPTIONNASM21044 BRASS PARTS MARKED “B”.NASM17830 STAINLESS STEEL PARTSMARKED “30300” OR “30430”.MARKING ON OTHER BRASS AND STAINLESSSTEEL PARTS AT ESNA OPTION.ULTIMATEESNAAPPROXTENSILEPART MATERIAL & FINISHWEIGHT THREAD A BC LSTRENGTHNUMBERLB/100REF REFLB MIN#1 22NM-12 STEEL - CADMIUM 0.14 .0730 - 72 UNF 3B 0.153 - 0.133 0.251 - 0.243 0.268 0.08122NM-26 STEEL - CADMIUM 440 0.14#2 .0860 - 56 UNJC 3B 0.153 - 0.133 0.251 - 0.243 0.268 0.081THREADSIZE68NM-26 ALUMINUM - ANODIZED 0.0579NM-26 STAINLESS - UNPLATED 440 0.1422NM-36 STEEL - CADMIUM 0.14 .0990 - 56 UNJF 3B#322NM-38 STEEL - CADMIUM 0.1468NM-38 ALUMINUM - ANODIZED 0.05 .0990 - 48 UNJC 3B0.153 - 0.133 0.251 - 0.243 0.268 0.08179NM-38 STAINLESS - UNPLATED 0.1422NM-40 STEEL - CADMIUM 750 0.14 .1120 - 40 UNJC 3B29NM-40 STEEL - UNPLATED 750 0.14 .1120 - 40 UNC 2B68NM-40 ALUMINUM - ANODIZED 350 0.05#479NM-40 STAINLESS - UNPLATED 750 0.1492NM-40 BRASS - CADMIUM 0.15 .1120 - 40 UNJC 3B0.153 - 0.133 0.251 - 0.243 0.268 0.08197NM-40 BRASS - BRIGHT NICKEL 0.1599NM-40 BRASS - UNPLATED 0.1522NM-48 STEEL - CADMIUM 820 0.14 .1120-48 UNJF 3B22NM-50 STEEL - CADMIUM 900 0.14#5 68NM-50 ALUMINUM - ANODIZED 450 0.05 .1250 - 40 UNJC 3B 0.153 - 0.133 0.251 - 0.243 0.268 0.08179NM-50 STAINLESS - UNPLATED 900 0.1422NM-60 STEEL - CADMIUM .1380-40 UNJF 3B1,250 0.2629NM-60 STEEL - UNPLATED .1380-40 UNF 2B22NM-62 STEEL - CADMIUM .1380-32 UNJC 3B1,130 0.2629NM-62 STEEL - UNPLATED .1380-32 UNC 2B#60.188 - 0.168 0.313 - 0.305 0.339 0.10368NM-62 ALUMINUM - ANODIZED 325 0.0979NM-62 STAINLESS - UNPLATED 1,130 0.26.1380-32 UNJC 3B97NM-62 BRASS - BRIGHT NICKEL0.2899NM-62 BRASS - UNPLATED22NM-82 STEEL -CADMIUM .1640-32 UNJC 3B1,720 0.4229NM-82 STEEL - UNPLATED .1640-32 UNC 2B68NM-82 ALUMINUM - ANODIZED 850 0.15#8 79NM-82 STAINLESS - UNPLATED 1,720 0.420.239 - 0.219 0.345 - 0.336 0.374 0.140.1640-32 UNJC 3B92NM-82 BRASS - CADMIUM0.4699NM-82 BRASS - UNPLATED22NM-86 STEEL - CADMIUM 1,850 0.42 .1640-32 UNJF 3BREFERENCE STANDARDS:AN365NASM17830NASM21044MS51922MS20365NAS1021NUT - HEX, LIGHTPJ - 2400 & 2515NM - NEPAGE 1 OF 4ISSUED: 8 AUG 62 REVISED: 12 3 NOV 200331

Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2THREADSIZEESNAPARTNUMBERMATERIAL & FINISHULTIMATETENSILESTRENGTHLB MINAPPROXWEIGHTLB/100THREAD A B22NM-02 STEEL - CADMIUM .1900-32 UNJF 3B2,460 0.5029NM-02 STEEL - UNPLATED .1900-32 UNF 2B68NM-02 ALUMINUM - ANODIZED 1,220 0.1879NM-02 STAINLESS - UNPLATED 2,460 0.5092NM-02 BRASS - CADMIUM.1900-32 UNJF 3B#1097NM-02 BRASS - BRIGHT NICKEL0.5599NM-02 BRASS - UNPLATED0.249 - 0.229 0.376 - 0.367 0.410 0.14022NM-04 STEEL - CADMIUM .1900-24 UNJC 3B2,100 0.5029NM-04 STEEL - UNPLATED .1900-24 UNC 2B68NM-04 ALUMINUM - ANODIZED 1,000 0.1879NM-04 STAINLESS - UNPLATED 2,010 0.50 .1900-24 UNJC 3B99NM-04 BRASS - UNPLATED 0.5522NM-124 STEEL - CADMIUM2,900.2160-24 UNJC 3B#12 79NM-124 STAINLESS - UNPLATED0.920.328 - 0.298 0.439 - 0.430 0.482 0.22522NM-128 STEEL - CADMIUM 3,100 .2160-24 UNJF 3B21NE-040 STEEL - ZINC .2500-20UNJC-3B29NE-040 STEEL - UNPLATED 0.90 .2500-20UNC-2B42NE-040 STEEL - CADMIUM 3,76068NE-040 ALUMINUM - ANODIZED 1,860 0.3279NE-040 STAINLESS - UNPLATED 3,760 0.90 .2500-20UNJC-3B92NE-040 BRASS - CADMIUM0.981/4 99NE-040 BRASS - UNPLATED0.328 - 0.298 0.439 - 0.430 0.482 0.22521NE-048 STEEL - ZINC .2500-28UNJF-3B29NE-048 STEEL - UNPLATED 0.90 .2500-28UNF-2B42NE-048 STEEL - CADMIUM 4,58068NE-048 ALUMINUM - ANODIZED 2,270 0.3279NE-048 STAINLESS - UNPLATED 4,580 0.90.2500-28UNJF-3B99NE-048 BRASS - UNPLATED 0.9821NE-054 STEEL - ZINC .3125-24UNJF-3B29NE-054 STEEL - UNPLATED .3125-24UNF-2B1.2042NE-054 STEEL - CADMIUM7,39079NE-054 STAINLESS - UNPLATED.3125-24UNJF-3B99NE-054 BRASS - UNPLATED 1.305/16 21NE-058 STEEL - ZINC .3125-18UNJC-3B 0.359 - 0.329 0.502 - 0.492 0.552 0.25029NE-058 STEEL - UNPLATED 1.20 .3125-18UNC-2B42NE-058 STEEL - CADMIUM 6,36068NE-058 ALUMINUM - ANODIZED 3,150 0.4379NE-058 STAINLESS - UNPLATED 6,360 1.20.3125-18UNJC-3B99NE-058 BRASS - UNPLATED 1.3021NE-064 STEEL - ZINC .3750-24UNJF-3B29NE-064 STEEL - UNPLATED 1.80 .3750-24UNF-2B52NE-064 STEEL - CADMIUM 11,45068NE-064 ALUMINUM - ANODIZED 5,680 0.6579NE-064 STAINLESS - UNPLATED 11,450 1.80.3750-24UNJF-3B3/899NE-064 BRASS - UNPLATED 2.0021NE-066 STEEL - ZINC .3750-16UNJC-3B0.468 - 0.438 0.564 - 0.553 0.622 0.33529NE-066 STEEL - UNPLATED 1.80 .3750-16UNC-2B52NE-066 STEEL - CADMIUM 9,54068NE-066 ALUMINUM - ANODIZED 4,730 0.6579NE-066 STAINLESS - UNPLATED 9,540 1.80.3750-16UNJC-3B99NE-066 BRASS - UNPLATED 2.00REFERENCE STANDARDS:AN365NASM17830NASM21044MS51922MS20365NAS1021NUT - HEX, LIGHTCREFPJ - 2400 & 2515LREFNM - NEPAGE 2 OF 4ISSUED: 8 AUG 62 REVISED: 12 3 NOV 200332

Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2THREADSIZE7/161/29/165/83/47/8REFERENCE STANDARDS:AN365NASM17830NASM21044ESNAPARTNUMBERMS51922MS20365NAS1021MATERIAL & FINISHULTIMATETENSILESTRENGTHLB MINAPPROXWEIGHTLB/10021NE-070 STEEL - ZINC .4375-20UNJF-3B29NE-070 STEEL - UNPLATED .4375-20UNF-2B2.3052NE-070 STEEL - CADMIUM 15,45079NE-070 STAINLESS - UNPLATED52NE-070U STEEL - CADMIUM 15,450 3.10.4375-20UNJF-3B68NE-070U ALUMINUM - ANODIZED 7,660 1.1021NE-074 STEEL - ZINC .4375-14UNJC-3B29NE-074 STEEL - UNPLATED .4375-14UNC-2B2.3052NE-074 STEEL - CADMIUM 13,14079NE-074 STAINLESS - UNPLATED.4375-14UNJC-3B52NE-074U STEEL - CADMIUM3.1079NE-074U STAINLESS - UNPLATED 13,14021NE-080 STEEL - ZINC .5000-20UNJF-3B29NE-080 STEEL - UNPLATED .5000-20UNF-2B4.3052NE-080 STEEL - CADMIUM21,11079NE-080 STAINLESS - UNPLATED.5000-20UNJF-3B99NE-080 BRASS - UNPLATED 4.7021NE-083 STEEL - ZINC .5000-13UNJC-3B29NE-083 STEEL - UNPLATED .5000-13UNC-3B4.3052NE-083 STEEL - CADMIUM 17,73079NE-083 STAINLESS - UNPLATED.5000-13UNJC-3B99NE-083 BRASS - UNPLATED 4.7021NE-098 STEEL - ZINC .5625-18UNJF-3B29NE-098 STEEL - UNPLATED .5625-18UNF-2B52NE-098 STEEL - CADMIUM7.1026,81079NE-098 STAINLESS - UNPLATED.5625-18UNJF-3B21NE-092 STEEL - ZINC .5625-12UNJC-3B21NE-101 STEEL - ZINC .6250-11UNJC-3B29NE-101 STEEL - UNPLATED .6250-11UNC-2B8.3052NE-101 STEEL - CADMIUM 28,53079NE-101 STAINLESS - UNPLATED.6250-11UNJC-3B99NE-101 BRASS - UNPLATED 9.0021NE-108 STEEL - ZINC .6250-18UNJF-3B29NE-108 STEEL - UNPLATED .6250-18UNF-2B8.3052NE-108 STEEL - CADMIUM 34,130.6250-18UNJF-3B79NE-108 STAINLESS - UNPLATED41NE-120 STEEL - ZINC .7500-10UNJC-3B49NE-120 STEEL - UNPLATED 12.00 .7500-10UNC-2B79NE-120 STAINLESS - UNPLATED99NE-120 BRASS - UNPLATED 13.00.7500-10UNJC-3B41NE-126 STEEL - ZINC .7500-16UNJF-3B49NE-126 STEEL - UNPLATED 12.00 .7500-16UNF-2B59NE-126 STEEL - UNPLATED 50,020 .7500-16UNJF-3B41NE-144 STEEL - ZINC .8750-14UNJF-3B49NE-144 STEEL - UNPLATED .8750-14UNF-2B52NE-144 STEEL - CADMIUM 68,440 19.00 .8750-14UNJF-3B41NE-149 STEEL - ZINC .8750-9UNJC-3B49NE-149 STEEL - UNPLATED .8750-9UNC-2BNUT - HEX, LIGHT33THREAD A B0.468 - 0.4380.656 - 0.626 0.877 - 0.8650.765 - 0.7350.890 - 0.8600.627 - 0.6160.690 - 0.6790.627 - 0.6160.690 - 0.6790.940 - 0.928CREF0.6980.7660.6980.7661.064 - 1.052 1.191 0.7420.999 - 0.969 1.252 - 1.239 1.403 0.790PJ - 2400 & 2515NM - NEPAGE 3 OF 4LREF0.3240.609 - 0.579 0.752 - 0.741 0.837 0.4640.978 0.4691.051 0.593ISSUED: 8 AUG 62 REVISED: 12 3 NOV 2003

Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2THREADSIZEESNAPARTNUMBERMATERIAL & FINISHULTIMATETENSILESTRENGTHLB MINAPPROXWEIGHTLB/100THREAD A B41NE-164 STEEL - ZINC 1.0000-14UNJS-3B49NE-164 STEEL - UNPLATED 1.0000-14UNS-2B152NE-164 STEEL - CADMIUM 92,180 1.0000-14UNJS-3B27.0041NE-168 STEEL - ZINC 1.0000-8UNJC-3B1.078 - 1.016 1.440 - 1.427 1.615 0.82549NE-168 STEEL - UNPLATED 1.0000-8UNC-2B52NE-168 STEEL - CADMIUM 79,280 1.0000-8UNJC-3B41NE-182 STEEL - ZINC 1.1250-12UNJF-3B1 1/8 49NE-182 STEEL - UNPLATED 41.00 1.1250-12UNF-2B 1.203 - 1.141 1.627 - 1.614 1.826 0.93052NE-182 STEEL - CADMIUM 116,700 1.1250-12UNJF-3B41NE-202 STEEL - ZINC 1.2500-12UNJF-3B1 1/4 49NE-202 STEEL - UNPLATED 58.00 1.2500-12UNF-2B 1.422 - 1.360 1.815 - 1.801 2.038 1.12552NE-202 STEEL - CADMIUM 147,940 1.2500-12UNJF-3B1 3/849NE-222 STEEL - UNPLATED 1.3750-12UNF-2B77.0049NE-226 STEEL - UNPLATED 1.3750-6UNC-2B1.609 - 1.547 2.008 - 1.973 2.232 1.28241NE-242 STEEL - ZINC 1.5000-12UNJF-3B1 1/249NE-242 STEEL - UNPLATED 1.5000-12UNF-2B100.0052NE-242 STEEL - CADMIUM 1.5000-12UNJF-3B1.640 - 1.578 2.197 - 2.159 2.444 1.31359NE-242 STEEL - UNPLATED 1.5000-12UNF-2BCREFLREFMATERIAL:“2”“4”“5”“6” ALUMINUM ALLOY - 2017-T4 OR EQUIV.“7” STAINLESS STEEL - AISI 303 OR EQUIV.“9” BRASS - COMMERCIAL HALF HARD OR EQUIV.} STEEL 12FINISH:12“1” ZINC PLATE, ASTM B633 Fe/Zn 8 SC2“2” CADMIUM PLATE, SAE-AMS-QQ-P-416 TYPE I, CLASS 3(SEE PART CODING NOTE)“7” BRIGHT NICKEL PLATE“8” ANNODIZED, MIL-A-8625“9” UNPLATED12LOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)12THREADS: AS8879 OR MIL-S-774212THREAD SQUARENESS: ESNA SPEC 405, GROUP IPERFORMANCE/APPROVAL STATUS: NASM25027 AS APPLICABLEPART CODING:F 5 2 NE - 070REFERENCE STANDARDS:AN365NASM17830NASM21044MATERIALMS51922MS20365NAS1021THREAD SIZENUT TYPEFINISHPOST PLATE TEATMENT - CHROMATE FORTIFICATIONON CADMIUM PLATED PARTS ONLY. ON CADMIUMPLATED BRASS PARTS, THE LETTER “Y” IS USED TODESIGNATE “TYPE II” PLATING IN LIEU OF THE LETTER“F”. AN EXAMPLE WOULD BE: Y92NM-02NUT - HEX, LIGHT34PJ - 2400 & 2515NM - NEPAGE 4 OF 4ISSUED: 8 AUG 62 REVISED: 12 3 NOV 2003

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2STAKE MARKSESNA OPTIONNASM21083 BRASS PARTSMARKED “B”. MARKING ONOTHER BRASS PARTS ATESNA OPTIONTHREADSIZELB. MIN.#2 22NTM-26 STEEL - CADMIUM .10 .0860-56UNJC-3B .094 - .124 .251 - .243 .268 .075#3 99NTM-38 BRASS - UNPLATED .11 .0990-48UNJC-3B .094 - .124 .251 - .243 .268 .07522NTM-40 STEEL - CADMIUM 370 .1068NTM-40 ALUMINUM-ANODIZED .0479NTM-40 STAINLESS - UNPLATED 370 .10.1120-40UNJC-3B#4 92NTM-40 BRASS - CADMIUM.094 - .124 .251 - .243 .268 .07597NTM-40 BRASS - BRIGHT NICKEL.1199NTM-40 BRASS - UNPLATED22NTM-48 STEEL - CADMIUM .10 .1120-48UNJF-3B#522NTM-50 STEEL - CADMIUM .1068NTM-50 ALUMINUM-ANODIZED .04.1250-40UNJC-3B .094 - .124 .251 - .243 .268 .07522NTM-62 STEEL - CADMIUM 560 .1968NTM-62 ALUMINUM-ANODIZED .0779NTM-62 STAINLESS - UNPLATED 560 .1992NTM-62 BRASS - CADMIUM.1380-32UNJC-3B#6 97NTM-62 BRASS - BRIGHT NICKEL.21.110 - .140 .313 - .305 .339 .09099NTM-62 BRASS - UNPLATED22NTM-60 STEEL - CADMIUM.1979NTM-60 STAINLESS - UNPLATED.1380-40UNJF-3B99NTM-60 BRASS - UNPLATED .2122NTM-82 STEEL - CADMIUM 860 .3068NTM-82 ALUMINUM-ANODIZED 425 .1279NTM-82 STAINLESS - UNPLATED .30.1640-32UNJC-3B92NTM-82 BRASS - CADMIUM#8.157 - .187 .345 - .336 .374 .11097NTM-82 BRASS - BRIGHT NICKEL.3399NTM-82 BRASS - UNPLATED22NTM-86 STEEL - CADMIUM 92079NTM-86 STAINLESS - UNPLATED.30 .1640-36UNJF-3B22NTM-04 STEEL - CADMIUM .3568NTM-04 ALUMINUM-ANODIZED .1479NTM-04 STAINLESS - UNPLATED .35.1900-24UNJC-3B97NTM-04 BRASS - BRIGHT NICKEL .3822NTM-02 STEEL - CADMIUM1,230 .35#10 27NTM-02 STEEL - BRIGHT NICKEL.157 - .187 .376 - .367 .410 .11068NTM-02 ALUMINUM-ANODIZED 610 .1479NTM-02 STAINLESS - UNPLATED 1,230 .35 .1900-32UNJF-3B92NTM-02 BRASS - CADMIUM97NTM-02 BRASS - BRIGHT NICKEL.3899NTM-02 BRASS - UNPLATEDREFERENCE STANDARDS:AN364NASM17830ESNA PARTNUMBERMS20364NAS1022MATERIAL & FINISHULTIMATETENSILESTRENGTHAPPROXWEIGHTLB/100NUT - HEX, LIGHTTHREAD A BCREFLREFPJ - 2400 & 2515NTM - NTEPAGE 1 OF 3ISSUED: 2 AUG 62 REVISED: 11 3 NOV 200335

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2THREADSIZELB. MIN.#12 22NTM-124 STEEL - CADMIUM .54 .2160-24UNJC-3B .188 - .218 .439 - .430 .482 .12521NTE-040 STEEL - ZINC .2500-20UNJC-3B29NTE-040 STEEL - UNPLATED .2500-20UNC-2B79NTE-040 STAINLESS - UNPLATED .2500-20UNJC-3B.5021NTE-048 STEEL - ZINC .2500-28UNJF-3B1/4 29NTE-048 STEEL - UNPLATED .2500-28UNF-2B .188 - .218 .439 - .430 .482 .12552NTE-048 STEEL - CADMIUM 2,29068NTE-048 ALUMINUM-ANODIZED 1,140 .1879NTE-048 STAINLESS - UNPLATED .50.2500-28UNJF-3B99NTE-048 BRASS - UNPLATED .5921NTE-058 STEEL - ZINC .3125-18UNJC-3B29NTE-058 STEEL - UNPLATED .3125-18UNC-2B.8021NTE-054 STEEL - ZINC .3125-UNJF-3B5/16 29NTE-054 STEEL - UNPLATED .3125-24UNF-2B .235 - .265 .502 - .492 .552 .15868NTE-054 ALUMINUM-ANODIZED 1,830 .2979NTE-054 STAINLESS - UNPLATED .80 .3125-24UNJF-3B99NTE-054 BRASS - UNPLATED .8721NTE-066 STEEL - ZINC .3750-16UNJC-3B29NTE-066 STEEL - UNPLATED .3750-16UNC-2B52NTE-066 STEEL - CADMIUM79NTE-066 STAINLESS - UNPLATED.95.3750-16UNJC-3B3/821NTE-064 STEEL - ZINC .3750-24UNJF-3B29NTE-064 STEEL - UNPLATED .3750-24UNF-2B.251 - .281 .564 - .553 .622 .15052NTE-064 STEEL - CADMIUM 5,70068NTE-064 ALUMINUM-ANODIZED 2,840 .3479NTE-064 STAINLESS - UNPLATED .95.3750-24UNJF-3B99NTE-064 BRASS - UNPLATED 1.0021NTE-070 STEEL - ZINC .4375-20UNJF-3B29NTE-070 STEEL - UNPLATED .4375-20UNF-2B1.307/16 52NTE-070 STEEL - CADMIUM 7,720.298 - .328 .627 - .615 .694 .22579NTE-070 STAINLESS - UNPLATED.4375-20UNJF-3B79NTE-070U STAINLESS - UNPLATED 2.10 .298 - .328 .690 - .679 .766 .22521NTE-080 STEEL - ZINC .5000-20UNJF-3B29NTE-080 STEEL - UNPLATED 2.00 .5000-20UNF-3B52NTE-080 STEEL - CADMIUM 10,5501/2.298 - .328 .741 - .752 .837 .19068NTE-080 ALUMINUM-ANODIZED 5,240 .72.5000-20UNJF-3B79NTE-080 STAINLESS - UNPLATED 2.0099NTE-080 BRASS - UNPLATED 2.2021NTE-098 STEEL - ZINC .5625-18UNJF-3B9/16 29NTE-098 STEEL - UNPLATED 3.50 .5625-18UNF-2B52NTE-098 STEEL - CADMIUM 13,400 .5625-18UNJF-3BREFERENCE STANDARDS:AN364NASM17830ESNA PARTNUMBERMS20364NAS1022MATERIAL & FINISHULTIMATETENSILESTRENGTHAPPROXWEIGHTLB/100NUT - HEX, LIGHTTHREAD A BCREFPJ - 2400 & 2515LREF.344 - .374 .877 - .865 .978 .225NTM - NTEPAGE 2 OF 3ISSUED: 2 AUG 62 REVISED: 11 3 NOV 200336

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ULTIMATEAPPROXTHREAD ESNA PARTTENSILEMATERIAL & FINISHC LWEIGHT THREAD A BSIZE NUMBERSTRENGTHLB/100REF REFLB. MIN.21NTE-108 STEEL - ZINC .6250-18UNJF-3B29NTE-108 STEEL - UNPLATED 3.90 .6250-18UNF-2B5/8.376 - .406 .940 - .928 1.051 .26552NTE-108 STEEL - CADMIUM 17,060.6250-18UNJF-3B68NTE-108 ALUMINUM-ANODIZED 8,460 1.4041NTE-126 STEEL - ZINC .7500-16UNJF-3B49NTE-126 STEEL - UNPLATED 5.20 .7500-16UNF-2B3/4 .391 - .421 1.064 - 1.052 1.191 .28852NTE-126 STEEL - CADMIUM 25,010.7500-16UNJF-3B68NTE-126 ALUMINUM-ANODIZED 12,400 1.9041NTE-144 STEEL - ZINC .8750-14UNJF-3B7/8 49NTE-144 STEEL - UNPLATED 8.00 .8750-14UNF-2B .454 - .484 1.252 - 1.239 1.403 .34052NTE-144 STEEL - CADMIUM 34,220 .8750-14UNJF-3B141NTE-164 STEEL - ZINC 1.000-14UNJS-3B14.0049NTE-164 STEEL - UNPLATED 1.000-14UNS-2B.516 - .578 1.440 - 1.427 1.615 .40541NTE-182 STEEL - ZINC 1.1250-12UNJF-3B1 1/8 49NTE-182 STEEL - UNPLATED 19.00 1.1250-12UNF-2B .610 - .672 1.627 - 1.614 1.826 .50052NTE-182 STEEL - CADMIUM 58,350 1.1250-12UNJF-3B41NTE-202 STEEL - ZINC 1.2500-12UNJF-3B1 1/4 49NTE-202 STEEL - UNPLATED 27.00 1.2500-12UNF-2B .703 - .765 1.815 - 1.801 2.038 .52352NTE-202 STEEL - CADMIUM 73,970 1.2500-12UNJF-3B41NTE-222 STEEL - ZINC 1.3750-12UNJF-3B1 3/8 49NTE-222 STEEL - UNPLATED 33.00 1.3750-12UNF-2B .759 -.821 2.008 - 1.973 2.249 .49352NTE-222 STEEL - CADMIUM 1.3750-12UNJF-3B41NTE-242 STEEL - ZINC 1.5000-12UNJF-3B1 1/2 49NTE-242 STEEL - UNPLATED 43.00 1.5000-12UNF-2B .766 - .828 2.197 - 2.159 2.416 .56552NTE-242 STEEL - CADMIUM 1.5000-12UNJF-3BMATERIAL:“2”“4” } STEEL“5”“6” ALUMINUM ALLOY - 2017-T4 OR EQUIV.“7” STAINLESS STEEL - AISI 303 OR EQUIV.“9” BRASS - COMMERCIAL HALF HARD OR EQUIV.FINISH:11“1” ZINC PLATE, ASTM B633 Fe/Zn 8 SC2“2” CADMIUM PLATE, SAE-AMS-QQ-P-416 TYPE I, CLASS 3 11(SEE PART CODING NOTE)“7” BRIGHT NICKEL PLATE“8” ANNODIZED, MIL-A-8625“9” UNPLATEDLOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE) 11THREADS: AS8879 OR MIL-S-7742 11THREAD SQUARENESS: ESNA SPEC 405, GROUP IPERFORMANCE/APPROVAL STATUS: NASM25027 AS APPLICABLE 11REFERENCE STANDARDS:AN364NASM17830MS20364NAS1022PART CODING:F 5 2 NTE - 070NUT - HEX, LIGHTMATERIALTHREAD SIZENUT TYPEFINISHPOST PLATE TEATMENT - PER SAE AMS-QQ-P-416, TYPE II, CLASS 2 ON CADMIUMPLATED PARTS ONLY. 11PJ - 2400 & 2515NTM - NTEPAGE 3 OF 3ISSUED: 2 AUG 62 REVISED: 11 3 NOV 200337

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2STAKE MARKSESNA OPTION11THREADSIZEESNA PARTNUMBERREFERENCE STANDARDS:MATERIAL & FINISHAPPROXWEIGHTLB/100THREAD A B1/421NU-040 STEEL - ZINC .2500-20UNJC-3B1.5029NU-040 STEEL - UNPLATED .2500-20UNC-2B79NU-040 STAINLESS - UNPLATED 1.50.2500-20UNJC-3B99NU-040 BRASS - UNPLATED 1.60.390 - .360 .506 - .489 .556 .29021NU-058 STEEL - ZINC .3125-18UNJC-3B29NU-058 STEEL - UNPLATED 2.10 .3125-18UNC-2B5/16.453 - .423 .566 - .551 .624 .33579NU-058 STAINLESS - UNPLATED.3125-18UNJC-3B99NU-058 BRASS - UNPLATED 2.3021NU-066 STEEL - ZINC .3750-16UNJC-3B29NU-066 STEEL - UNPLATED .3750-16UNC-2B3.803/8 52NU-066 STEEL - CADMIUM.562 - .532 .691 - .675 .763 .39279NU-066 STAINLESS - UNPLATED .3750-16UNJC-3B99NU-066 BRASS - UNPLATED 4.107/1621NU-074 STEEL - ZINC .4375-14UNJC-3B4.8029NU-074 STEEL - UNPLATED .4375-14UNC-2B.609 - .579 .754 - .736 .829 .46421NU-083 STEEL - ZINC .5000-13UNJC-3B29NU-083 STEEL - UNPLATED .5000-13UNC-2B8.201/2 52NU-083 STEEL - CADMIUM.718 - .688 .879 - .861 .969 .54479NU-083 STAINLESS - UNPLATED .5000-13UNJC-3B99NU-083 BRASS - UNPLATED 8.909/16 21NU-092 STEEL - ZINC 10.00 .5625-12UNJC-3B .812 - .782 .942 - .922 1.037 .65521NU-101 STEEL - ZINC .6250-11UNJC-3829NU-101 STEEL - UNPLATED 14.00 .6250-11UNC-2B5/8.874 - .844 1.067 - 1.045 1.175 .67779NU-101 STAINLESS - UNPLATED.6250-11UNJC-3899NU-101 BRASS - UNPLATED 15.003/441NU-120 STEEL - ZINC .7500-10UNJC-3B23.0049NU-120 STEEL - UNPLATED .7500-10UNC-2B1.015 - .985 1.255 - 1.231 1.382 .7907/841NU-149 STEEL - ZINC .8750-9UNJC-3B34.0049NU-149 STEEL - UNPLATED .8750-9UNC-3B1.140 - 1.110 1.444 - 1.417 1.589 .883141NU-168 STEEL - ZINC 1.0000-8UNJC-3B48.0049NU-168 STEEL - UNPLATED 1.0000-8UNC-2B1.312 - 1.250 1.632 - 1.602 1.796 1.0001 1/841NU-187 STEEL - ZINC 1.1250-7UNJC-3B69.0049NU-187 STEEL - UNPLATED 1.1250-7UNC-2B1.469 - 1.407 1.820 - 1.788 2.002 1.0961 1/441NU-207 STEEL - ZINC 92.00 1.2500-7UNJC-3B49NU-207 STEEL - UNPLATED 1.2500-7UNC-2B1.672 - 1.610 2.008 - 1.973 2.209 1.250NUT - HEX, HEAVYCREFPJ - 2424LREFNUPAGE 1 OF 2ISSUED: 9 OCT 52 REVISED: 11 3 NOV 200338

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2THREAD ESNA PARTSIZENUMBERMATERIAL & FINISHAPPROXWEIGHTLB/100THREAD A B1 3/8 49NU-226 STEEL - UNPLATED 120.00 1.3750-6UNC-2B 1.828 - 1.766 2.197 - 2.159 2.416 1.3761 1/2 49NU-246 STEEL - UNPLATED 150.00 1.5000-6UNC-2B 1.953 - 1.891 2.384 - 2.344 2.622 1.4131 3/4 49NU-285 STEEL - UNPLATED 240.00 1.7500-5UNJC-3B 2.376 - 2.250 2.762 - 2.715 3.035 1.8302 49NU-324 STEEL - UNPLATED 310.00 2.0000-4.5UNJC-3B 2.469 - 2.343 3.137 - 3.086 3.449 1.7502 49NU-3208 STEEL - UNPLATED 310.00 2.0000-8UN-3B 2.469 - 2.343 3.137 - 3.086 3.449 1.7502 49NU-3212 STEEL - UNPLATED 310.00 2.0000-12UN3B 2.469 - 2.343 3.137 - 3.086 3.449 1.7502 1/2 49NU-4008 STEEL - UNPLATED 682.00 2.5000-8UN-3B 3.204 - 3.078 4.015 - 3.875 4.618 2.475CREFLREFMATERIAL:“2”“4” } STEEL “5”“7” STAINLESS STEEL - AISI 303 OR EQUIV.“9” BRASS - COMMERCIAL HALF HARD OR EQUIV.11PART CODING:2 9 NU - 040FINISHTHREAD SIZENUT TYPEFINISH:“1” ZINC PLATE (.0002 MIN THICKNESS)“2” CADMIUM PLATE SAE-AMS-QQ-P-416 TYPE I, CLASS 3“9” UNPLATEDMATERIALLOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)THREAD SQUARENESS: ESNA SPEC 405, GROUP I11THREADS: MIL-S-7742 OR AS887911PERFORMANCE: LOCKING TORQUE IN ACCORDANCE WITH NASM25027APPROVAL STATUS: ESNA TYPE NU NUTS ARE APPROVED UNDER ARMY ORDNANCE DRAWINGS BBSX2 AND BBSX3.APPLICATION: TYPE “NU” NUTS ARE CONSIDERED TO BE ALTERNATE SELF-LOCKING DESIGNS FOR THE AMERICANSTANDARD HEAVY HEX SERIES.11REFERENCE STANDARDS:NUT - HEX, HEAVYPJ - 2424NUPAGE 2 OF 2ISSUED: 9 OCT 52 REVISED: 11 3 NOV 200339

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2STAKE MARKSESNA OPTIONTHREADSIZEREFERENCE STANDARDS:NASM16228ESNA PARTNUMBERMATERIAL & FINISHAPPROXWEIGHTLB/100THREAD A B21NTU-040 STEEL - ZINC .2500-20UNJC-3B1/4 29NTU-040 STEEL - UNPLATED 1.00 .2500-20UNC-2B .296 - .266 .502 - .492 .552 .19479NTU-040 STAINLESS - UNPLATED .2500-20UNJC-3B21NTU-058 STEEL - ZINC .3125-18UNJC-3B5/16 29NTU-058 STEEL - UNPLATED 1.40 .3125-18UNC-2B .328 - .298 .564 - .553 .622 .21279NTU-058 STAINLESS - UNPLATED .3125-18UNJC-3B21NTU-066 STEEL - ZINC .3750-16UNJC-3B29NTU-066 STEEL - UNPLATED 2.70 .3750-16UNC-2B3/8.421 - .391 .690 - .679 .766 .25179NTU-066 STAINLESS - UNPLATED.3750-16UNJC-3B99NTU-066 BRASS - UNPLATED 2.907/1621NTU-074 STEEL - ZINC .4375-14UNJC-3B3.3029NTU-074 STEEL - UNPLATED .4375-14UNC-3B.453 - .423 .752 - .741 .837 .31621NTU-083 STEEL - ZINC .5000-13UNJC-3B1/2 29NTU-083 STEEL - UNPLATED 5.40 .5000-13UNC-2B .546 - .516 .877 - .865 .978 .36079NTU-083 STAINLESS - UNPLATED .5000-13UNJC-3B21NTU-101 STEEL - ZINC .6250-11UNJC-3B5/8 29NTU-101 STEEL - UNPLATED 9.20 .6250-11UNC-2B .624 - .594 1.064 - 1.052 1.191 .42879NTU-101 STAINLESS - UNPLATED .6250-11UNJC-3B41NTU-120 STEEL - ZINC .7500-11UNJC-3B3/4 49NTU-120 STEEL - UNPLATED 15.00 .7500-11UNC-2B .718 - .688 1.252 - 1.239 1.403 .48879NTU-120 STAINLESS - UNPLATED .7500-11UNJC-3B7/841NTU-149 STEEL - ZINC .8750-9UNJC-3B21.0049NTU-149 STEEL - UNPLATED .8750-9UNC-2B.796 - .766 1.440 - 1.427 1.615 .535141NTU-168 STEEL - ZINC 1.0000-8UNJC-3B30.0049NTU-168 STEEL - UNPLATED 1.0000-8UNC-2B.922 - .860 1.627 - 1.614 1.826 .600NUT - HEX, HEAVY, THINCREFPJ - 2424LREFNTUPAGE 1 OF 2ISSUED: 1 APR 53 REVISED: 12 3 NOV 200340

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2THREADSIZEESNA PARTNUMBERMATERIAL & FINISHAPPROXWEIGHTLB/100THREAD A B1 1/8 49NTU-187 STEEL - UNPLATED 43.00 1.1250-7UNC-2B 1.000 - .938 1.814 - 1.801 2.038 .6271 1/4 49NTU-207 STEEL - UNPLATED 57.00 1.2500-7UNC-2B 1.140 - 1.078 2.008 - 1.973 2.232 .7201 3/8 49NTU-226 STEEL - UNPLATED 70.00 1.3750-6UNC-2B 1.219 - 1.157 2.197 - 2.159 2.444 .7671 1/2 49NTU-246 STEEL - UNPLATED 95.00 1.5000-6UNC-2B 1.344 - 1.282 2.384 -2.344 2.622 .8101 3/4 49NTU-285 STEEL - UNPLATED 140.00 1.7500-5UNJC-3B 1.532 - 1.406 2.762 - 2.715 3.075 .9862 49NTU-3212 STEEL - UNPLATED 210.00 2.0000-12UN-3B 1.735 - 1.609 3.137 - 3.086 3.497 1.0162 1/4 49NTU-364 STEEL - UNPLATED 290.00 2.2500-4.5UNC-3B 2.001 -1.875 3.514 - 3.457 3.918 1.1792 1/2 49NTU-4012 STEEL - UNPLATED 430.00 2.5000-12UN-3B 2.250 - 2.124 4.015 - 3.875 4.393 1.523CREFLREFMATERIAL:“2”“4”“7” STAINLESS STEEL - AISI 303 OR EQUIV (SIZES –040 THRU –120)“9” BRASS - COMMERCIAL HALF HARD (SIZES –040 THRU –066)FINISH:“1” ZINC PLATE, .0002 MIN THICKNESS“9” UNPLATEDLOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)12THREADS: MIL-S-7742 OR AS887912THREAD SQUARENESS: ESNA APEC 405, GROUP IPERFORMANCE: LOCKING TORQUE IN ACCORDANCE WITH NASM2502712APPLICATION: TYPE “NTU” NUTS ARE PRIMAILY INTENDED FOR USE IN SHEAR LOAD APPLICATIONS AND ARE CONSIDERED TO BE SELF-LOCKING ALTERNATES TO THE AMERICAN STANDARD THIN HEX SERIES.PART CODING:2 9 NTU - 040THREAD SIZENUT TYPEFINISHMATERIALPJ - 2424ISSUED: 1 APR 53 REVISED: 12 3 NOV 2003REFERENCE STANDARDS:NASM16228NUT - HEX, HEAVY, THINNTUPAGE 2 OF 241

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L209NM-40(MONEL) .1120-40UNJC-3B .153 - .133 .252 - .243 .268 .081 .091 .1409NM-62(MONEL) .1380-32UNJC-3B .188 - .168 .316 - .305 .339 .103 .113 .2609NM-82(MONEL) .1640-32UNJC-3B .239 - .219 .347 - .336 .374 .145 .4209NM-04(MONEL) .1900-24UNJC-3B.140.249 - .229 .378 - .367 .41009NM-02(MONEL) .1900-32UNJF-3B.155 .5009NE-040(MONEL)09NE-058(MONEL).2500-20UNJC-3B.3125-18UNJC-3B09NE-048(MONEL)09NE-054(MONEL).2500-28UNJF-3B.3125-24UNJF-3B.328 - .298.359 - .329.439 - .430.504 - .492.482.552.225.250.205.2251.131.5109NE-066(MONEL) .3750-16UNJC-3B09NE-064(MONEL) .3750-24UNJF-3B .468 - .438.566 - .553 .622 .335 .333 2.2609NE-074U(MONEL) .4375-14UNJC-3B .692 - .679 .766 .324 .340 3.8909NE-083(MONEL) .5000-13UNJC-3B09NE-080(MONEL) .5000-20UNJF-3B.609 - .579 .755 - .741 .837 .464 .470 5.3909NE-092(MONEL) .5625-12UNJC-3B .656 - .626 .880 - .865 .978 .469 .508 8.9009NE-101(MONEL) .6250-11UNJC-3B09NE-108(MONEL) .6250-18UNJF-3B.765 - .735 .944 - .928 1.051 .593 .596 10.4009NE-120(MONEL) .7500-10UNJC-3B .721.890 - .860 1.068 - 1.052 1.191 .64709NE-126(MONEL) .7500-16UNJF-3B .71015.0309NE-149(MONEL) .8750-9UNJC-3B09NE-144(MONEL) .8750-14UNJF-3B.999 - .969 1.257 - 1.239 1.403 .790 .831 23.8009NE-168(MONEL) 1.0000-8UNJC-3B 1.078 - 1.016 1.446 - 1.427 1.615 .825 .890 33.8209NE-187(MONEL) 1.1250-7UNJC-3B .9401.203 - 1.141 1.634 - 1.614 1.826 .93009NE-182(MONEL) 1.1250-12UNJF-3B 1.00051.3609NE-207(MONEL) 1.2500-7UNJC-3B 1.422 - 1.360 1.822 - 1.801 2.038 1.125 1.094 72.6609NE-226(MONEL) 1.3750-6UNJC-3B 1.609 - 1.547 2.011 - 1.973 2.232 1.282 1.250 96.4609NE-246(MONEL) 1.5000-6UNJC-3B 1.3751.640 - 1.578 2.200 - 2.159 2.444 1.31309NE-242(MONEL) 1.500-12UNJF-3B 1.365114.0009NU-285(MONEL) 1.7500-5UNJC-3B 2.376 - 2.250 2.766 - 2.715 3.075 1.830 1.830 290.0009NU-324(MONEL) 2.0000-4 1/2UNJC-3B 2.469 - 2.343 3.142 - 3.086 3.497 1.812 1.842 334.0009NU-364(MONEL) 2.2500-4 1/2UNJC-3B 2.876 - 2.750 3.518 - 3.457 3.916 2.187 2.217 519.0009NU-404(MONEL) 2.5000-4UNJC-3B 3.204 - 3.078 4.020 - 3.875 4.393 2.602 2.699 827.00MATERIAL:MONEL, QQ-N-281, CLASS A OR BFINISH:UNPLATEDESNA PARTNUMBERLOCKING INSERT:RED NYLON (350°F MAX PERFORMANCE)12THREAD A BTHREAD SQUARENESS:ESNA SPEC 405, GROUP ITHREADS:AS887912PERFORMANCE:NASM25027/NASM1782812CREFLREFTREFWEIGHTLB/100REFAPPLICATION: MONEL HEX NUTS ARERECOMMENDED FOR APPLICATIONS RE-QUIRING FASTENERS WITH EXCEPTIONALCHEMICAL AND/OR CORROSION RESIS-TANCE. THEY ARE PARTICULARLY SUIT-ABLE FOR USES INVOLVING EXPOSURE TOSALT WATER AND ARE APPROVED BY THEBUREAU OF SHIPS.ISSUED: 1 APR 53 REVISED: 13 3 NOV 2003REFERENCE STANDARDS:NASM17828NUT - HEX, MONELNEXNM - NE - NU MONEL42

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PART NUMBERSTHREADA250°F 450°FNU13841-040 VU13841-040 .2500-20UNJC-3B .390 - .360 .504 - .492 .552 .290 1.75 6,000 .265NU13841-058 VU13841-058 .3125-18UNJC-3B .453 - .423 .566 - .553 .622 .335 2.45 8,600 .322NU13841-066 VU13841-066 .3750-16UNJC-3B .562 - .532 .692 - .679 .766 .392 4.40 12,700 .416NU13841-083 VU13841-083 .5000-13UNJC-3B .718 - .688 .880 - .865 .978 .544 9.50 24,800 .565NU13841-101 VU13841-101 .6250-11UNJC-3B .874 - .844 1.068 - 1.052 1.191 .677 16.25 38,300 .692NU13841-120 VU13841-120 .7500-10UNJC-3B 1.015 - .985 1.257 - 1.239 1.403 .790 26.70 54,000 .828NU13841-149 VU13841-149 .8750-9UNJC-3B 1.140 - 1.110 1.446 - 1.427 1.615 .883 39.45 73,000 .948NU13841-168 VU13841-168 1.0000-8UNJC-3B 1.312 - 1.250 1.634 - 1.614 1.826 1.000 55.70 95,800 1.000NU13841-187 VU13841-187 1.125-7UNJC-3B 1.469 - 1.407 1.822 - 1.801 2.038 1.096 80.00 121,100 1.125NU13841-207 VU13841-207 1.2500-7UNJC-3B 1.672 - 1.610 2.011 - 1.973 2.232 1.250 106.75 146,600 1.280NU13841-226 VU13841-226 1.3750-6UNJC-3B 1.828 - 1.766 2.200 - 2.159 2.444 1.376 139.25 186,000 1.438NU13841-246 VU13841-246 1.5000-6UNJC-3B 1.953 - 1.891 2.388 - 2.344 2.622 1.413 174.0 200,000 1.513NU13841-285 VU13841-285 1.7500-5UNJC-3B 2.376 - 2.250 2.766 - 2.715 3.075 1.830 278.40 205,000 1.830NU13841-324 VU13841-324 2.0000-4.5UNJC-3B 2.469 - 2.343 3.142 - 3.086 3.497 1.750 359.60 233,000 1.850NU13841-364 VU13841-364 2.2500-4.5UNJC-3B 2.876 - 2.780 3.518 - 3.457 3.918 2.063 550.00 390,000NU13841-404 VU13841-404 2.5000-4.5UNJC-3B 3.204 - 3.078 4.020 - 3.875 4.393 2.475 850.00 500,000 2.699BCREFLREFMAXWEIGHTLB/100MIN.TENSILESTRENGTHLB.TREFMATERIAL:MONEL, QQ-N-281, CLASS A OR BFINISH:UNPLATEDLOCKING INSERT: RED NYLON, ASTM D4066 GROUP 1, CLASS 2 (350°F MAX PERFORMANCE)THREAD SQUARENESS: MIL-N-25027/1THREADS: AS8879REFERENCE STANDARDS:MIL-N-25027/11PERFORMANCE: MIL-N-25027/1APPLICATION: MONEL HEX NUTS ARE RECOMMENDED FOR APPLICATIONS REQUIRING FASTENERS WITHEXCEPTIONAL CHEMICAL AND/OR CORROSION RESISTANCE. THEY ARE PARTICULARLYSUITABLE FOR USES INVOLVING EXPOSURE TO SALT WATER AND ARE APPROVED BY THEBUREAU OF SHIPS.NUT - HEX, MONEL350°F, 450°F1PJ - 2424-114NU13841VU13841ISSUED: 5/5/95 REVISED: 1 3 NOV 200343

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PARTNUMBERFINISH(SEE NOTE 1)THREADA±.015BCREFLREFAPPROXWEIGHTLB/10021NE2291-066 ZINC .3750-16UNJC-3B .406 .564 - .553 .622 .288 1.6021N1935-070 ZINC .4375-20IMJF-3B .250 .627 - .616 .694 .165 .9622N183-080 CADMIUM .5000-20UNJF-3B .437 .752 - .741 .837 .307 2.7059NE2527-098 UNPLATED .5625-18UNJF-3B .516 .815 - .803 .907 .375 3.8049NE2073-126 UNPLATED .7500-16UNJF-3B .688 1.064 - 1.052 1.191 .460 8.6052NE2120-126 CADMIUM .7500-16UNJF-3B .656 1.064 - 1.052 1.191 .430 8.5049NE2842-126 UNPLATED .7500-16UNJF-3B .625 1.064 - 1.052 1.191 .397 8.4049NTE2798-144 UNPLATED .8750-14UNJF-3B .625 1.252 - 1.239 1.405 .496 11.0049NTE2390-1620 UNPLATED 1.000-20UNEF-3B .547 ±.031 1.440 - 1.427 1.619 .405 14.0049NE2694-182 UNPLATED 1.1250-12UNJF-3B .937 ±.031 1.627 - 1.614 1.833 .686 32.0049NE1743-202 UNPLATED 1.2500-12UNJF-3B 1.250 ±.031 1.814 - 1.801 2.046 .988 50.0049NE2254-202 UNPLATED 1.2500-12UNJF-3B 1.094 ±.031 1.814 - 1.801 2.046 .828 42.0049NE2254-242 UNPLATED 1.5000-12UNJF-3B 1.219 ±.031 2.190 - 2.175 2.473 .923 70.0049NTU2846-3212 UNPLATED 2.000-12UN-3B 1.469 ±.031 2.752 - 2.737 3.114 .866 120.00MATERIAL:STEELFINISH:7ZINC PLATE PER ASTM B633 Fe/Zn 5 SC1CADMIUM PLATE PER SAE AMS-QQ-P-416 TYPE I, CLASS 3UNPLATEDLOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)THREADS: MIL-S-7742 OR AS88797APPLICATION: THIS DRAWING LISTS HEX NUTS HAVING ENVELOPE DIMENSIONS WHICH ARE AT VARIANCE WITHRESPECT TO THOSE OF ESNA STANDARD HEX NUT SERIES. THEY ARE OFFERED FOR POSSIBLE USEIN APPLICATIONS HAVING SPECIAL DIMENSIONAL OR TENSILE REQUIREMENTS AND LIMITED INSTALLATION OR WRENCHING CLEARANCE CONDITIONS.NOTES:1. CONSULT ESNA BEFORE ORDERING FOR FINISH VARIATIONS OTHER THAN THE STANDARD COMBINATIONSSHOWN.7ISSUED: 8 JAN 58 REVISED: 7 3 NOV 2003REFERENCE STANDARDS:NUT - HEXCONSOLIDATED DRAWING44HEX - SP(I)

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PART NUMBERUNPLATEDZINC PLATEDTHREADA±.01559N1260-064 51N1260-064 .3750-24UNJF-3B .641 .566 - .551 .624 .523 2.659N1260-070 51N1260-070 .4375-20UNJF-3B .765 .628 - .612 .694 .657 3.659N1260-080 51N1260-080 .5000-20UNJF-3B .812 .754 - .736 .829 .683 5.959N1260-098 .5625-18UNJF-3B .922 .879 - .861 .969 .736 9.659N1260-108 51N1260-108 .6250-18UNJF-3B 1.000 .942 - .922 1.037 .881 12.059N1260-126 51N1260-126 .7500-16UNJF-3B 1.250 1.067 - 1.045 1.175 1.114 18.059N1260-144 51N1260-144 .8750-14UNJF-3B 1.438 1.255 - 1.231 1.382 1.299 30.059N1260-164 51N1260-164 1.0000-14UNJS-3B 1.672 ±.031 1.444 - 1.417 1.589 1.452 46.051N1260-182 1.1250-12UNJF-3B 1.843 ±.031 1.632 - 1.602 1.796 1.697 65.059N1260-202 51N1260-202 1.2500-12UNJF-3B 2.031 ±.031 1.820 - 1.788 2.002 1.841 88.0BCREFLREFAPPROXWEIGHTLB/100MATERIAL:STEELLOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)THREAD SQUARENESS: ESNA SPEC 405, GROUP ITHREADS: AS8879REFERENCE STANDARDS:10APPLICATION:THE N1260 IS DESIGNED FOR APPLICATIONS THAT REQUIRE PRE-STRESSING HIGH STRENGTH BOLTS TOTHEIR ELASTIC LIMIT. THE NUT IS PROVIDED WITH EXTRA THREAD LENGTH AND HEX HEIGHT TO ATTAINUNIFORM THREAD LOADING AND ADEQUATE WRENCHING AREA.A TYPICAL APPLICATION WOULD BE FOR USE WITH “U” BOLTS IN ATTACHING LEAF-SPRINGS TO COMMER-CIAL AND PASSENGER VEHICLES AXLES.10NUT - HEX, THICKPJ - 1191N1260ISSUED: 6 MAY 53 REVISED: 10 3 NOV 200345

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PART NUMBERSCADMIUMCADMIUM PLATEPLATE UNPLATEDTYPE II, CLASS 2TYPE I, CLASS 3MATERIAL:STEEL TYPE C1137 OF FED-STD -66 OR CARBON OR ALLOY STEEL MIL-S-1222,C1137 STEEL MAY CONTAIN FROM 0.15 TO 0.35 PERCENT LEAD.12FINISH:CADMIUM PLATE PER SAE AMS-QQ-P-416, TYPE AND CLASS AS NOTED INTABULATION.UNPLATED - AS NOTED IN TABULATION.LOCKING INSERT: RED NYLON (350°F PERFORMANCE)THREAD SQUARENESS: ESNA SPEC 405, GROUP ITHREADS: AS887912PERFORMANCE: NASM25027 EXCEPT FOR TENSILE STRENGTH LISTEDABOVEREFERENCE STANDARDS:NASM17829MAX MIN MAX MIN52N1610-02 .1900-32UNJF-3B .249 .219 .376 .367 .410 .140 3470 .50F52N1610-048 52N1610-048 .2500-28UNJF-3B .328 .298 .439 .430 .482 .225 6200 .90F52N1610-058 52N1610-058 .3125-18UNJC-3B 9210.359 .329 .502 .492 .552 .250F52N1610-054 52N1610-054 .3125-24UNJF-3B 9820F52N1610-066 .3750-16UNJC-3B 11620.438 .564 .553 .622 .335F52N1610-064 52N1610-064 .3750-24UNJF-3B .468152001.201.80F52N1610-074U .4375-14UNJC-3B 15940.468 .438 .690 .679 .766 .324F52N1610-070U .4375-20UNJF-3B 178003.1052N1610-070 59N1610-070 .4375-20UNJF-3B .468 .438 .627 .616 .694 .324 20600 2.30F52N1610-083 .5000-13UNJC-3B 21300.609 .579 .752 .741 .837 .464F52N1610-080 52N1610-080 59N1610-080 .5000-20UNJF-3B 275004.30F52N1610-098 59N1610-098 .5625-18UNJF-3B .656 .626 .877 .865 .978 .469 34800 7.10F52N1610-101 .6250-11UNJC-3B 33900.765 .735 .940 .928 1.051 .593F52N1610-108 52N1610-108 59N1610-108 .6250-18UNJF-3B 436008.30F52N1610-120 .7500-10UNJC-3B 50100.890 .860 1.064 1.052 1.191 .742F52N1610-126 59N1610-126 .7500-16UNJF-3B 6340012.00F52N1610-149 .8750-9UNJC-3B .999 .969 1.252 1.239 1.403 .790 69300 19.00F52N1610-168 1.000-8UNJC-3B 1061001.078 1.016 1.440 1.427 1.615 .82559N1610-164 1.000-14UNJS-3B 11690027.00F52N1610-187 1.1250-7UNJC-3B 1140001.203 1.141 1.627 1.614 1.826 .930F52N1610-182 1.1250-12UNJF-3B 12840041.00F52N1610-207 1.2500-7UNJC-3B 1450001.422 1.360 1.814 1.801 2.038 1.12559N1610-202 1.2500-12UNJF-3B 18540058.00F52N1610-222 1.3750-12UNJF-3B 1.609 1.547 2.008 1.973 2.232 1.282 197000 77.00F52N1610-246 1.5000-6UNJC-3B 2110001.640 1.578 2.197 2.159 2.444 1.31352N1610-242 59N1010-242 1.5000-12UNJF-3B 275400100.00F52NU1610-285 1.7500-5UNJC-3B 2.376 2.250 2.762 2.715 3.075 1.830 285000 250.00F52NU1610-324 2.000-4.5UNJC-3B 2.469 2.343 3.137 3.086 3.497 1.750 375000 310.00F52NU1610-364 2.2500-4.5UNJC-3B 2.876 2.750 3.514 3.457 3.918 2.063 487500 450.00F52NU1610-404 2.5000-4UNJC-3B 3.204 3.078 4.015 3.875 4.393 2.475 600000 682.0012THREAD12A B CNOTES:1. TYPE 1610 PARTS WITH A “G” PREFIX WILL BE INDIVIDUALLY MAGNETICPARTICLE INSPECTED IN ACCORDANCE WITH ASTM E1444 AND THE12 DISCONTINUITY REQUIREMENTS OF NASM2507. EXAMPLE: GF52N1610-048. CONSULT ESNA FOR AVAILABILITY AND ADDITIONAL CHARGE.2. CONSULT ESNA FOR AVAILABILITY STATUS OF PARTS NOT INCLUDEDIN TABULATION.3. PART NUMBERS LISTED IN COLUMN I OF THE PART NUMBER TABULA-TION (TYPE II, CLASS 2 PLATING) ARE EXACT ESNA PART NUMBER CON-VERSIONS OF THE FULL RANGE OF NASM17829 SIZES.4. UNPLATED STEEL PARTS HAVE CLASS 2B THREAD FIT.NUT - HEX, HIGH TENSILEREFLREFULTIMATETENSILESTRENGTHLB. MIN.PJ - 1761APPROXWEIGHTLB/100N1610NU1610ISSUED: 3 DEC 65 REVISED: 12 3 NOV 200346

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2THREADB B C A ASIZE PART NUMBER* PART NUMBER* THREAD SIZE MAX MIN REF MAX MINL REF#0 LM141334-00 LM141309-00 0.060 - 80 UNF3B 0.111 0.104 0.116 0.055 0.080 0.045LM141334-14 LM141309-14 0.073 - 64 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#1 LM141334-12 LM141309-12 0.073 - 72 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081LM141334-26 LM141309-26 0.086 - 56 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#2 LM141334-24 LM141309-24 0.086 - 64 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081LM141334-38 LM141309-38 0.099 - 48 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#3 LM141334-36 LM141309-36 0.099 - 56 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081LM141334-40 LM141309-40 0.112 - 40 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#4 LM141334-48 LM141309-48 0.112 - 48 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081LM141334-50 LM141309-50 0.125 - 40 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#5 LM141334-54 LM141309-54 0.125 - 44 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081LM141334-62 LM141309-62 0.138 - 32 UNC 3B 0.313 0.305 0.339 0.188 0.168 0.103#6 LM141334-60 LM141309-60 0.138 - 40 UNF 3B 0.313 0.305 0.339 0.188 0.168 0.103LM141334-82 LM141309-82 0.164 - 32 UNC 3B 0.345 0.336 0.374 0.239 0.219 0.140#8 LM141334-86 LM141309-86 0.164 - 36 UNF 3B 0.345 0.336 0.374 0.239 0.219 0.140LM141334-04 LM141309-04 0.190 - 24 UNC 3B 0.376 0.367 0.410 0.249 0.229 0.140#10 LM141334-02 LM141309-02 0.190 - 32 UNF 3B 0.376 0.367 0.410 0.249 0.229 0.140LM141334-124 LM141309-124 0.216 - 24 UNC 3B 0.439 0.430 0.482 0.328 0.298 0.225#12 LM141334-128 LM141309-128 0.216 - 28 UNF 3B 0.439 0.430 0.482 0.328 0.298 0.225LE141334-040 LE141309-040 0.250 - 20 UNC 3B 0.439 0.428 0.482 0.328 0.298 0.2251/4 LE141334-048 LE141309-048 0.250 - 28 UNF 3B 0.439 0.428 0.482 0.328 0.298 0.225LE141334-058 LE141309-058 0.312 - 18 UNC 3B 0.502 0.489 0.552 0.359 0.329 0.2505/16 LE141334-054 LE141309-054 0.312 - 24 UNF 3B 0.502 0.489 0.552 0.359 0.329 0.250LE141334-066 LE141309-066 0.375 - 16 UNC 3B 0.564 0.551 0.622 0.468 0.438 0.3353/8 LE141334-064 LE141309-064 0.375 - 24 UNF 3B 0.564 0.551 0.622 0.468 0.438 0.335LE141334-074 LE141309-074 0.437 - 14 UNC 3B 0.688 0.675 0.768 0.463 0.365 0.2237/16 LE141334-070 LE141309-070 0.437 - 20 UNF 3B 0.688 0.675 0.768 0.463 0.365 0.223LE141334-083 LE141309-083 0.500 - 13 UNC 3B 0.752 0.736 0.837 0.609 0.579 0.4641/2 LE141334-080 LE141309-080 0.500 - 20 UNF 3B 0.752 0.736 0.837 0.609 0.579 0.464LE141334-092 LE141309-092 0.562 - 12 UNC 3B 0.877 0.861 0.978 0.656 0.626 0.4699/16 LE141334-098 LE141309-098 0.562 - 18 UNF 3B 0.877 0.861 0.978 0.656 0.626 0.469LE141334-101 LE141309-101 0.625 - 11 UNC 3B 0.940 0.922 1.051 0.765 0.735 0.5935/8 LE141334-108 LE141309-108 0.625 - 18 UNF 3B 0.940 0.922 1.051 0.765 0.735 0.593LE141334-120 LE141309-120 0.750 - 10 UNC 3B 1.064 1.052 1.191 0.890 0.860 0.7423/4 LE141334-126 LE141309-126 0.750 - 16 UNF 3B 1.064 1.052 1.191 0.890 0.860 0.742LE141334-149 LE141309-149 0.875 - 9 UNC 3B 1.252 1.239 1.403 0.999 0.969 0.7907/8 LE141334-144 LE141309-144 0.875 - 14 UNF 3B 1.252 1.239 1.403 0.999 0.969 0.790LE141334-168 LE141309-168 1.000 - 8 UNC 3B 1.440 1.427 1.615 1.078 1.016 0.8251 LE141334-162 LE141309-162 1.000 - 12 UNC 3B 1.440 1.427 1.615 1.078 1.016 0.825LE141334-187 LE141309-187 1.125 - 7 UNC 3B 1.627 1.614 1.826 1.203 1.141 0.9301 1/8 LE141334-182 LE141309-182 1.125 - 12 UNF 3B 1.627 1.614 1.826 1.203 1.141 0.930LE141334-207 LE141309-207 1.250 - 7 UNC 3B 1.815 1.801 2.038 1.422 1.360 1.1251 1/4 LE141334-202 LE141309-202 1.250 - 12 UNF 3B 1.815 1.801 2.038 1.422 1.360 1.125LE141334-226 LE141309-226 1.375 - 6 UNC 3B 2.008 1.973 2.232 1.609 1.547 1.2821 3/8 LE141334-222 LE141309-222 1.375 - 12 UNF 3B 2.008 1.973 2.232 1.609 1.547 1.282LE141334-246 LE141309-246 1.500 - 6 UNC 3B 2.197 2.159 2.444 1.640 1.578 1.3131 1/2 LE141334-242 LE141309-242 1.500 - 12 UNF 3B 2.197 2.159 2.444 1.640 1.578 1.313* PROPER MATERIAL AND FINISH PREFIX MUST BE SPECIFIED ALONG WITH THE BASE PART NUMBERSHOWN ABOVE. SEE NOTE 1.REFERENCE STANDARDS:MIL-DTL-45913/4NUT - HEX, SELF-LOCKINGALL METAL47PJ - ME5083LM/LE141334LM/LE141309PAGE 1 OF 2ISSUED: 3 NOV 2003 REVISED:

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2NOTES:1. MATERIAL AND FINISH PREFIXWHEN ORDERING, THE BASE PART NUMBER SHOWN IN THE TABLE MUST BE PREFIXED BY THE PROPER MATERIA L AND FINISHCODES. USE THE GUIDE BELOW TO SELECT THE MATERIAL AND FINISH TO SUIT THE SPECIFIC APPLICATION.MATERIAL“4” - GRADE 5 STEEL - PARTS CODED “141334”“5” - GRADE 8 STEEL - PARTS CODED “141309”“6” - ALUMINUM - SAE AMS-QQ-A-225/5, /6, /8, OR /10 - PARTS CODED “141334”“7” - CORROSION RESISTANT STEEL300 SERIES ALLOY GROUP 1 OR 316 ALLOY GROUP 2 PER ASTM F594PARTS CODED “141334” ARE MADE FROM 300 SERIES CRESPARTS CODED “141309” ARE MADE FROM 316 SERIES CRES“9” - BRASS UNS C46200 OR C46400 PER ASTM F467 - PARTS CODED “141334”FINISH“2” - CADMIUM PLATED PER SAE AMS-QQ-P-416, TYPE II CLASS 2 - CARBON STEEL PARTS ONLYFOR THIS FINISH ALSO PREFIX THE ENTIRE PART NUMBERWITH “F”. SEE THE “PART CODING” SECTION BELOW“3” - PHOSPHATE COATED PER DOD-P-16232, TYPE Z, CLASS 2 - CARBON STEEL PARTS ONLY“4” - ZINC PLATED PER ASTM B633, TYPE II, FE/ZN 8 - CARBON STEEL PARTS ONLY“8” - ANODIZED PER MIL-A-8625, TYPE II, CLASS 1 - ALUMINUM PARTS ONLY“9” - PLAIN FINISH2. MARKINGCARBON STEEL PARTS WILL BE MARKED “5” OR “8” AS APPLICABLE. RED NYLON INSERT INDICATESMACLEAN ESNA AS THE MANUFACTURER.3. THREADSASME B1.14. PART CODINGF 5 2 LE141334 - 040THREAD SIZEFINISHNUT TYPEMATERIALPOST PLATE TEATMENT - CHROMATE FORTIFICATIONON CADMIUM PLATED PARTS ONLY.REFERENCE STANDARDS:MIL-DTL-45913/4NUT - HEX, SELF-LOCKINGALL METAL48PJ - ME5083LM/LE141334LM/LE141309PAGE 2 OF 2ISSUED: 3 NOV 2003 REVISED:

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2THREADSIZEPARTNUMBER*PARTNUMBER* THREAD SIZEBMAXBMINCREFAMAXAMINLREF#0 LM141332-00 LM141333-00 0.060 - 80 UNF2B 0.111 0.104 0.116 0.055 0.080 0.045#1#2#3#4#5#6#8#10#121/45/163/87/161/29/165/83/47/811 1/81 1/41 3/81 1/2LM141332-14LM141332-26LM141332-38LM141332-40LM141332-50LM141332-62LM141332-82LM141332-04LM141332-124LE141332-040LE141332-058LE141332-066LE141332-074U LE141333-074U 0.437 - 14 UNC 2BLE141332-083LE141332-092LE141332-101LE141332-120LE141332-149LE141332-168LE141332-187LE141332-207LE141332-226LE141332-246LM141333-14LM141333-26LM141333-38LM141333-40LM141333-50LM141333-62LM141333-82LM141333-04LM141333-124LE141333-040LE141333-058LE141333-0660.688LE141333-083LE141333-092LE141333-101LE141333-120LE141333-149LE141333-168LE141333-187LE141333-207LE141333-226LE141333-2460.073 - 64 UNC 2B0.086 - 56 UNC 2B0.099 - 48 UNC 2B0.112 - 40 UNC 2B0.125 - 40 UNC 2B0.138 - 32 UNC 2B0.164 - 32 UNC 2B0.190 - 24 UNC 2B0.216 - 24 UNC 2B0.250 - 20 UNC 2B0.312 - 18 UNC 2B0.375 - 16 UNC 2B0.6750.500 - 13 UNC 2B0.562 - 12 UNC 2B0.625 - 11 UNC 2B0.750 - 10 UNC 2B0.875 - 9 UNC 2B1.000 - 8 UNC 2B1.125 - 7 UNC 2B1.250 - 7 UNC 2B1.375 - 6 UNC 2B1.500 - 6 UNC 2B0.2510.2510.2510.2510.2510.3130.3450.3760.4390.4390.5020.5640.7680.7520.8770.9401.0641.2521.4401.6271.8152.0082.1970.2430.2430.2430.2430.2430.3050.3360.3670.4300.4280.4890.5510.4630.7360.8610.9221.0521.2391.4271.6141.8011.9732.1590.2680.2680.2680.2680.2680.3390.3740.4100.4820.4820.5520.6220.3650.8370.9781.0511.1911.4031.6151.8262.0382.2322.4440.1530.1530.1530.1530.1530.1880.2390.2490.3280.3280.3590.4680.2230.6090.6560.7650.8900.9991.0781.2031.4221.6091.6400.1330.1330.1330.1330.1330.1680.2190.2290.2980.2980.3290.4380.5790.6260.7350.8600.9691.0161.1411.3601.5471.5780.0810.0810.0810.0810.0810.1030.1400.1400.2250.2250.2500.3350.4640.4690.5930.7420.7900.8250.9301.1251.2821.313LM141332-12LM141332-24LM141332-36LM141332-48LM141332-54LM141332-60LM141332-86LM141332-02LM141332-128LE141332-048LE141332-054LE141332-064LE141332-070U LE141333-070U 0.437 - 20 UNF 2BLE141332-080LE141332-098LE141332-108LE141332-126LE141332-144LE141332-162LE141332-182LE141332-202LE141332-222LE141332-242LM141333-12LM141333-24LM141333-36LM141333-48LM141333-54LM141333-60LM141333-86LM141333-02LM141333-128LE141333-048LE141333-054LE141333-0640.688LE141333-080LE141333-098LE141333-108LE141333-126LE141333-144LE141333-162LE141333-182LE141333-202LE141333-222LE141333-2420.073 - 72 UNF 2B0.086 - 64 UNF 2B0.099 - 56 UNF 2B0.112 - 48 UNF 2B0.125 - 44 UNF 2B0.138 - 40 UNF 2B0.164 - 36 UNF 2B0.190 - 32 UNF 2B0.216 - 28 UNF 2B0.250 - 28 UNF 2B0.312 - 24 UNF 2B0.375 - 24 UNF 2B0.6750.500 - 20 UNF 2B0.562 - 18 UNF 2B0.625 - 18 UNF 2B0.750 - 16 UNF 2B0.875 - 14 UNF 2B1.000 - 12 UNC 2B1.125 - 12 UNF 2B1.250 - 12 UNF 2B1.375 - 12 UNF 2B1.500 - 12 UNF 2B0.2510.2510.2510.2510.2510.3130.3450.3760.4390.4390.5020.5640.7680.7520.8770.9401.0641.2521.4401.6271.8152.0082.1970.2430.2430.2430.2430.2430.3050.3360.3670.4300.4280.4890.5510.4630.7360.8610.9221.0521.2391.4271.6141.8011.9732.1590.2680.2680.2680.2680.2680.3390.3740.4100.4820.4820.5520.6220.3650.8370.9781.0511.1911.4031.6151.8262.0382.2322.4440.1530.1530.1530.1530.1530.1880.2390.2490.3280.3280.3590.4680.2230.6090.6560.7650.8900.9991.0781.2031.4221.6091.6400.1330.1330.1330.1330.1330.1680.2190.2290.2980.2980.3290.4380.5790.6260.7350.8600.9691.0161.1411.3601.5471.5780.0810.0810.0810.0810.0810.1030.1400.1400.2250.2250.2500.3350.4640.4690.5930.7420.7900.8250.9301.1251.2821.313* PROPER MATERIAL AND FINISH PREFIX MUST BE SPECIFIED ALONG WITH THE BASE PART NUMBERSHOWN ABOVE. SEE NOTE 1.REFERENCE STANDARDS:MIL-DTL-45913/2NUT - HEX, SELF-LOCKINGALL METAL49PJ - ME5083LM/LE141332LM/LE141333PAGE 1 OF 2ISSUED: 3 NOV 2003 REVISED:

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2NOTES:1. MATERIAL AND FINISH PREFIXWHEN ORDERING, THE BASE PART NUMBER SHOWN IN THE TABLE MUST BE PREFIXED BY THE PROPER MATERIA L AND FINISHCODES. USE THE GUIDE BELOW TO SELECT THE MATERIAL AND FINISH TO SUIT THE SPECIFIC APPLICATION.MATERIAL“4” - GRADE 5 STEEL - PARTS CODED “141332”“5” - GRADE 8 STEEL - PARTS CODED “141333”“6” - ALUMINUM - SAE AMS-QQ-A-225/5, /6, /8, OR /10 - PARTS CODED “141332”“7” - CORROSION RESISTANT STEEL300 SERIES ALLOY GROUP 1 OR 316 ALLOY GROUP 2 PER ASTM F594PARTS CODED “141332” ARE MADE FROM 300 SERIES CRESPARTS CODED “141333” ARE MADE FROM 316 SERIES CRES“9” - BRASS UNS C46200 OR C46400 PER ASTM F467 - PARTS CODED “141332”FINISH“2” - CADMIUM PLATED PER SAE AMS-QQ-P-416, TYPE II CLASS 2 - CARBON STEEL PARTS ONLYFOR THIS FINISH ALSO PREFIX THE ENTIRE PART NUMBERWITH “F”. SEE THE “PART CODING” SECTION BELOW“3” - PHOSPHATE COATED PER DOD-P-16232, TYPE Z, CLASS 2 - CARBON STEEL PARTS ONLY“4” - ZINC PLATED PER ASTM B633, TYPE II, FE/ZN 8 - CARBON STEEL PARTS ONLY“8” - ANODIZED PER MIL-A-8625, TYPE II, CLASS 1 - ALUMINUM PARTS ONLY“9” - PLAIN FINISH2. MARKINGCARBON STEEL PARTS WILL BE MARKED “5” OR “8” AS APPLICABLE. RED NYLON INSERT INDICATESMACLEAN ESNA AS THE MANUFACTURER.3. THREADSASME B1.14. PART CODINGF 5 2 LE141332 - 040THREAD SIZEFINISHNUT TYPEMATERIALPOST PLATE TEATMENT - CHROMATE FORTIFICATIONON CADMIUM PLATED PARTS ONLY.REFERENCE STANDARDS:MIL-DTL-45913/2NUT - HEX, SELF-LOCKINGALL METAL50PJ - ME5083LM/LE141332LM/LE141333PAGE 2 OF 2ISSUED: 3 NOV 2003 REVISED:

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2STAKE MARKSESNA OPTIONSEE NOTE 2 FORMARKING INFORMATIONTHREADSIZE PART NUMBER* PART NUMBER* THREAD SIZEBMAXBMINCREFAMAXAMINLREF#0 NM141252-00 NM141310-00 0.060 - 80 UNF2B 0.111 0.104 0.116 0.055 0.080 0.045#1#2#3#4#5#6#8#10#121/45/163/87/161/29/165/83/47/811 1/81 1/41 3/81 1/2NM141252-14NM141252-26NM141252-38NM141252-40NM141252-50NM141252-62NM141252-82NM141252-04NM141252-124NE141252-040NE141252-058NE141252-066NE141252-074NE141252-083NE141252-092NE141252-101NE141252-120NE141252-149NE141252-168NE141252-187NE141252-207NE141252-226NE141252-246NM141310-14NM141310-26NM141310-38NM141310-40NM141310-50NM141310-62NM141310-82NM141310-04NM141310-124NE141310-040NE141310-058NE141310-066NE141310-074NE141310-083NE141310-092NE141310-101NE141310-120NE141310-149NE141310-168NE141310-187NE141310-207NE141310-226NE141310-2460.073 - 64 UNC 2B0.086 - 56 UNC 2B0.099 - 48 UNC 2B0.112 - 40 UNC 2B0.125 - 40 UNC 2B0.138 - 32 UNC 2B0.164 - 32 UNC 2B0.190 - 24 UNC 2B0.216 - 24 UNC 2B0.250 - 20 UNC 2B0.312 - 18 UNC 2B0.375 - 16 UNC 2B0.437 - 14 UNC 2B0.500 - 13 UNC 2B0.562 - 12 UNC 2B0.625 - 11 UNC 2B0.750 - 10 UNC 2B0.875 - 9 UNC 2B1.000 - 8 UNC 2B1.125 - 7 UNC 2B1.250 - 7 UNC 2B1.375 - 6 UNC 2B1.500 - 6 UNC 2B0.2510.2510.2510.2510.2510.3130.3450.3760.4390.4390.5020.5640.6270.7520.8770.9401.0641.2521.4401.6271.8152.0082.1970.2430.2430.2430.2430.2430.3050.3360.3670.4300.4280.4890.5510.6160.7360.8610.9221.0521.2391.4271.6141.8011.9732.1590.2680.2680.2680.2680.2680.3390.3740.4100.4820.4820.5520.6220.6980.8370.9781.0511.1911.4031.6151.8262.0382.2322.4440.1530.1530.1530.1530.1530.1880.2390.2490.3280.3280.3590.4680.4680.6090.6560.7650.8900.9991.0781.2031.4221.6091.6400.1330.1330.1330.1330.1330.1680.2190.2290.2980.2980.3290.4380.4380.5790.6260.7350.8600.9691.0161.1411.3601.5471.5780.0810.0810.0810.0810.0810.1030.1400.1400.2250.2250.2500.3350.3240.4640.4690.5930.7420.7900.8250.9301.1251.2821.313NM141252-12NM141252-24NM141252-36NM141252-48NM141252-54NM141252-60NM141252-86NM141252-02NM141252-128NE141252-048NE141252-054NE141252-064NE141252-070NE141252-080NE141252-098NE141252-108NE141252-126NE141252-144NE141252-162NE141252-182NE141252-202NE141252-222NE141252-242NM141310-12NM141310-24NM141310-36NM141310-48NM141310-54NM141310-60NM141310-86NM141310-02NM141310-128NE141310-048NE141310-054NE141310-064NE141310-070NE141310-080NE141310-098NE141310-108NE141310-126NE141310-144NE141310-162NE141310-182NE141310-202NE141310-222NE141310-2420.073 - 72 UNF 2B0.086 - 64 UNF 2B0.099 - 56 UNF 2B0.112 - 48 UNF 2B0.125 - 44 UNF 2B0.138 - 40 UNF 2B0.164 - 36 UNF 2B0.190 - 32 UNF 2B0.216 - 28 UNF 2B0.250 - 28 UNF 2B0.312 - 24 UNF 2B0.375 - 24 UNF 2B0.437 - 20 UNF 2B0.500 - 20 UNF 2B0.562 - 18 UNF 2B0.625 - 18 UNF 2B0.750 - 16 UNF 2B0.875 - 14 UNF 2B1.000 - 12 UNC 2B1.125 - 12 UNF 2B1.250 - 12 UNF 2B1.375 - 12 UNF 2B1.500 - 12 UNF 2B0.2510.2510.2510.2510.2510.3130.3450.3760.4390.4390.5020.5640.6270.7520.8770.9401.0641.2521.4401.6271.8152.0082.1970.2430.2430.2430.2430.2430.3050.3360.3670.4300.4280.4890.5510.6160.7360.8610.9221.0521.2391.4271.6141.8011.9732.1590.2680.2680.2680.2680.2680.3390.3740.4100.4820.4820.5520.6220.6980.8370.9781.0511.1911.4031.6151.8262.0382.2322.4440.1530.1530.1530.1530.1530.1880.2390.2490.3280.3280.3590.4680.4680.6090.6560.7650.8900.9991.0781.2031.4221.6091.6400.1330.1330.1330.1330.1330.1680.2190.2290.2980.2980.3290.4380.4380.5790.6260.7350.8600.9691.0161.1411.3601.5471.5780.0810.0810.0810.0810.0810.1030.1400.1400.2250.2250.2500.3350.3240.4640.4690.5930.7420.7900.8250.9301.1251.2821.313* PROPER MATERIAL AND FINISH PREFIX MUST BE SPECIFIED ALONG WITH THE BASE PART NUMBERSHOWN ABOVE. SEE NOTE 1.REFERENCE STANDARDS:MIL-DTL-45913/1NUT - HEX, SELF-LOCKING, 350°F51PJ - 2424-110NM/NE141252NM/NE141310PAGE 1 OF 2ISSUED: 3 NOV 2003 REVISED:

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2NOTES:1. MATERIAL AND FINISH PREFIXWHEN ORDERING, THE BASE PART NUMBER SHOWN IN THE TABLE MUST BE PREFIXED BY THE PROPER MATERIA L AND FINISHCODES. USE THE GUIDE BELOW TO SELECT THE MATERIAL AND FINISH TO SUIT THE SPECIFIC APPLICATION.MATERIAL“4” - GRADE 5 STEEL - PARTS CODED “141252”“5” - GRADE 8 STEEL - PARTS CODED “141310”“6” - ALUMINUM - SAE AMS-QQ-A-225/5, /6, /8, OR /10 - PARTS CODED “141252”“7” - CORROSION RESISTANT STEEL300 SERIES ALLOY GROUP 1 OR 316 ALLOY GROUP 2 PER ASTM F594PARTS CODED “141252” ARE MADE FROM 300 SERIES CRESPARTS CODED “141310” ARE MADE FROM 316 SERIES CRES“9” - BRASS UNS C46200 OR C46400 PER ASTM F467 - PARTS CODED “141252”FINISH“2” - CADMIUM PLATED PER SAE AMS-QQ-P-416, TYPE II CLASS 2 - CARBON STEEL PARTS ONLYFOR THIS FINISH ALSO PREFIX THE ENTIRE PART NUMBERWITH “F”. SEE THE “PART CODING” SECTION BELOW“3” - PHOSPHATE COATED PER DOD-P-16232, TYPE Z, CLASS 2 - CARBON STEEL PARTS ONLY“4” - ZINC PLATED PER ASTM B633, TYPE II, FE/ZN 8 - CARBON STEEL PARTS ONLY“8” - ANODIZED PER MIL-A-8625, TYPE II, CLASS 1 - ALUMINUM PARTS ONLY“9” - PLAIN FINISH2. MARKINGCARBON STEEL PARTS WILL BE MARKED “5” OR “8” AS APPLICABLE. RED NYLON INSERT INDICATESMACLEAN ESNA AS THE MANUFACTURER.3. LOCKING INSERTRED NYLON (350°F MAX PERFORMANCE)4. THREADSASME B1.15. PART CODINGF 5 2 NE141252 - 070THREAD SIZEFINISHNUT TYPEMATERIALPOST PLATE TEATMENT - CHROMATE FORTIFICATIONON CADMIUM PLATED PARTS ONLY.REFERENCE STANDARDS:MIL-DTL-45913/1NUT - HEX, SELF-LOCKING, 350°F52PJ - 2424-110NM/NE141252NM/NE141310PAGE 2 OF 2ISSUED: 3 NOV 2003 REVISED:

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2STAKE MARKSESNA OPTIONSEE NOTE 2 FORMARKING INFORMATIONTHREADB B C A ASIZE PART NUMBER* PART NUMBER* THREAD SIZE MAX MIN REF MAX MINL REF#0 NM141316-00 NM141253-00 0.060 - 80 UNF3B 0.111 0.104 0.116 0.055 0.080 0.045NM141316-14 NM141253-14 0.073 - 64 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#1 NM141316-12 NM141253-12 0.073 - 72 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081NM141316-26 NM141253-26 0.086 - 56 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#2 NM141316-24 NM141253-24 0.086 - 64 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081NM141316-38 NM141253-38 0.099 - 48 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#3 NM141316-36 NM141253-36 0.099 - 56 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081NM141316-40 NM141253-40 0.112 - 40 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#4 NM141316-48 NM141253-48 0.112 - 48 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081NM141316-50 NM141253-50 0.125 - 40 UNC 3B 0.251 0.243 0.268 0.153 0.133 0.081#5 NM141316-54 NM141253-54 0.125 - 44 UNF 3B 0.251 0.243 0.268 0.153 0.133 0.081NM141316-62 NM141253-62 0.138 - 32 UNC 3B 0.313 0.305 0.339 0.188 0.168 0.103#6 NM141316-60 NM141253-60 0.138 - 40 UNF 3B 0.313 0.305 0.339 0.188 0.168 0.103NM141316-82 NM141253-82 0.164 - 32 UNC 3B 0.345 0.336 0.374 0.239 0.219 0.140#8 NM141316-86 NM141253-86 0.164 - 36 UNF 3B 0.345 0.336 0.374 0.239 0.219 0.140NM141316-04 NM141253-04 0.190 - 24 UNC 3B 0.376 0.367 0.410 0.249 0.229 0.140#10 NM141316-02 NM141253-02 0.190 - 32 UNF 3B 0.376 0.367 0.410 0.249 0.229 0.140NM141316-124 NM141253-124 0.216 - 24 UNC 3B 0.439 0.430 0.482 0.328 0.298 0.225#12 NM141316-128 NM141253-128 0.216 - 28 UNF 3B 0.439 0.430 0.482 0.328 0.298 0.225NE141316-040 NE141253-040 0.250 - 20 UNC 3B 0.439 0.428 0.482 0.328 0.298 0.2251/4 NE141316-048 NE141253-048 0.250 - 28 UNF 3B 0.439 0.428 0.482 0.328 0.298 0.225NE141316-058 NE141253-058 0.312 - 18 UNC 3B 0.502 0.489 0.552 0.359 0.329 0.2505/16 NE141316-054 NE141253-054 0.312 - 24 UNF 3B 0.502 0.489 0.552 0.359 0.329 0.250NE141316-066 NE141253-066 0.375 - 16 UNC 3B 0.564 0.551 0.622 0.468 0.438 0.3353/8 NE141316-064 NE141253-064 0.375 - 24 UNF 3B 0.564 0.551 0.622 0.468 0.438 0.335NE141316-074 NE141253-074 0.437 - 14 UNC 3B 0.627 0.616 0.698 0.468 0.438 0.3247/16 NE141316-070 NE141253-070 0.437 - 20 UNF 3B 0.627 0.616 0.698 0.468 0.438 0.324NE141316-083 NE141253-083 0.500 - 13 UNC 3B 0.752 0.736 0.837 0.609 0.579 0.4641/2 NE141316-080 NE141253-080 0.500 - 20 UNF 3B 0.752 0.736 0.837 0.609 0.579 0.464NE141316-092 NE141253-092 0.562 - 12 UNC 3B 0.877 0.861 0.978 0.656 0.626 0.4699/16 NE141316-098 NE141253-098 0.562 - 18 UNF 3B 0.877 0.861 0.978 0.656 0.626 0.469NE141316-101 NE141253-101 0.625 - 11 UNC 3B 0.940 0.922 1.051 0.765 0.735 0.5935/8 NE141316-108 NE141253-108 0.625 - 18 UNF 3B 0.940 0.922 1.051 0.765 0.735 0.593NE141316-120 NE141253-120 0.750 - 10 UNC 3B 1.064 1.052 1.191 0.890 0.860 0.7423/4 NE141316-126 NE141253-126 0.750 - 16 UNF 3B 1.064 1.052 1.191 0.890 0.860 0.742NE141316-149 NE141253-149 0.875 - 9 UNC 3B 1.252 1.239 1.403 0.999 0.969 0.7907/8 NE141316-144 NE141253-144 0.875 - 14 UNF 3B 1.252 1.239 1.403 0.999 0.969 0.790NE141316-168 NE141253-168 1.000 - 8 UNC 3B 1.440 1.427 1.615 1.078 1.016 0.8251 NE141316-162 NE141253-162 1.000 - 12 UNC 3B 1.440 1.427 1.615 1.078 1.016 0.825NE141316-187 NE141253-187 1.125 - 7 UNC 3B 1.627 1.614 1.826 1.203 1.141 0.9301 1/8 NE141316-182 NE141253-182 1.125 - 12 UNF 3B 1.627 1.614 1.826 1.203 1.141 0.930NE141316-207 NE141253-207 1.250 - 7 UNC 3B 1.815 1.801 2.038 1.422 1.360 1.1251 1/4 NE141316-202 NE141253-202 1.250 - 12 UNF 3B 1.815 1.801 2.038 1.422 1.360 1.125NE141316-226 NE141253-226 1.375 - 6 UNC 3B 2.008 1.973 2.232 1.609 1.547 1.2821 3/8 NE141316-222 NE141253-222 1.375 - 12 UNF 3B 2.008 1.973 2.232 1.609 1.547 1.282NE141316-246 NE141253-246 1.500 - 6 UNC 3B 2.197 2.159 2.444 1.640 1.578 1.3131 1/2 NE141316-242 NE141253-242 1.500 - 12 UNF 3B 2.197 2.159 2.444 1.640 1.578 1.313* PROPER MATERIAL AND FINISH PREFIX MUST BE SPECIFIED ALONG WITH THE BASE PART NUMBERSHOWN ABOVE. SEE NOTE 1.REFERENCE STANDARDS:MIL-DTL-45913/3NUT - HEX, SELF-LOCKING, 350°F53PJ - 2424-110NM/NE141316NM/NE141253PAGE 1 OF 2ISSUED: 3 NOV 2003 REVISED:

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2NOTES:1. MATERIAL AND FINISH PREFIXWHEN ORDERING, THE BASE PART NUMBER SHOWN IN THE TABLE MUST BE PREFIXED BY THE PROPER MATERIA L AND FINISHCODES. USE THE GUIDE BELOW TO SELECT THE MATERIAL AND FINISH TO SUIT THE SPECIFIC APPLICATION.MATERIAL“4” - GRADE 5 STEEL - PARTS CODED “141316”“5” - GRADE 8 STEEL - PARTS CODED “141253”“6” - ALUMINUM - SAE AMS-QQ-A-225/5, /6, /8, OR /10 - PARTS CODED “141316”“7” - CORROSION RESISTANT STEEL300 SERIES ALLOY GROUP 1 OR 316 ALLOY GROUP 2 PER ASTM F594PARTS CODED “141316” ARE MADE FROM 300 SERIES CRESPARTS CODED “141253” ARE MADE FROM 316 SERIES CRES“9” - BRASS UNS C46200 OR C46400 PER ASTM F467 - PARTS CODED “141316”FINISH“2” - CADMIUM PLATED PER SAE AMS-QQ-P-416, TYPE II CLASS 2 - CARBON STEEL PARTS ONLYFOR THIS FINISH ALSO PREFIX THE ENTIRE PART NUMBERWITH “F”. SEE THE “PART CODING” SECTION BELOW“3” - PHOSPHATE COATED PER DOD-P-16232, TYPE Z, CLASS 2 - CARBON STEEL PARTS ONLY“4” - ZINC PLATED PER ASTM B633, TYPE II, FE/ZN 8 - CARBON STEEL PARTS ONLY“8” - ANODIZED PER MIL-A-8625, TYPE II, CLASS 1 - ALUMINUM PARTS ONLY“9” - PLAIN FINISH2. MARKINGCARBON STEEL PARTS WILL BE MARKED “5” OR “8” AS APPLICABLE. RED NYLON INSERT INDICATESMACLEAN ESNA AS THE MANUFACTURER.3. LOCKING INSERTRED NYLON (350°F MAX PERFORMANCE)4. THREADSASME B1.15. PART CODINGF 5 2 NE141316 - 070THREAD SIZEFINISHNUT TYPEMATERIALPOST PLATE TEATMENT - CHROMATE FORTIFICATIONON CADMIUM PLATED PARTS ONLY.REFERENCE STANDARDS:MIL-DTL-45913/3NUT - HEX, SELF-LOCKING, 350°F54PJ - 2424-110NM/NE141316NM/NE141253PAGE 2 OF 2ISSUED: 3 NOV 2003 REVISED:

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2BOLT ENDAPPROXESNA PARTALTHREADBC GWEIGHTNUMBERH1 H2REF.REF REFREFMIN MAXLB/10022NKTM-40 .210 .116 .172 .075 .11.1120-40UNJC-3B.251 - .243 .268 .14022NKM-40 .234 .147 .203 .081 .1522NKTM-62 .249 .131 .191 .090 .20.1380-32UNJC-3B22NKM-62 .297 .313 - .305 .339 .200.179 .239 .103 .2722NKM-60 .1380-40UNJF-3B .29722NKTM-82 .308 .191 .250 .110 .31.1640-32UNJC-3B .345 - .336 .374 .22522NKM-82 .353 .236 .295 .140 .4322NKM-04 .1900-24UNJC-3B .363 .262 .314 .140 .5022NKTM-02 .308 .376 - .367 .410 .234 .207 .259 .110 .36.1900-32UNJF-3B22NKM-02 .363 .262 .314 .140 .5052NKTE-048 .380 .244 .335 .125 .55.2500-28UNJF-3B .439 - .430 .482 .29042NKE-048 .480 .344 .435 .225 .9552NKTE-054 .431 .308 .386 .158 .86.3125-24UNJF-3B.502 - .492 .552 .34342NKE-054 .525 .400 .462 .250 1.3052NKE-064 .3750-24UNJF-3B .622 .564 - .553 .622 .415 .498 .575 .335 1.9052NKTE-070 .4375-20UNJF-3B .519 .627 - .616 .694 .480 .375 .466 .225 1.40MATERIAL:NUT - STEEL, CAP - RED NYLONFINISH:CADMIUM PLATE, SAE AMS-QQ-P-416, TYPE I, CLASS 3LOCKING INSERT: RED NYLON (350° MAX PERFORMANCE)THREAD SQUARENESS: ESNA SPEC 405, GROUP ITHREADS: AS8879REFERENCE STANDARDS:11PERFORMANCE: NASM25027 AS APPLICABLE 11SEALING - 80 PSI (SEE APPLICATION NOTE)APPLICATION: TYPE NKM, NKE, NKTM, AND NKTE CAP NUTS ARE DESIGNED FOR USE IN PLACE OF STANDARD AND THINHEIGHT HEX NUTS IN APPLICATIONS WHERE FOR REASONS OF SAFETY OR APPEARANCE, IT IS DESIREABLE TO COVER EX-POSED BOLT ENDS. THEY ARE ALSO SUITABLE FOR SEALING INTERNAL OR EXTERNAL PRESSURES, UP TO 80 PSI PAST THEBOLT THREADS, PROVIDED A PROPER SEAL IS EFFECTED BETWEEN THE NUT SEAT AND ITS MATING SURFACE.NOTES:1. THE LOCKING INSERT AND CAP ARE AN INTEGRAL PART.2. “H2” MAXIMUM DESIGNATES THE MAXIMUM RECOMMENDEDBOLT ENTRY TO AVOID CONTACT WITH THE TIP OF THE CAP.“H1” MINIMUM DESIGNATES THE MINIMUM RECOMMENDEDBOLT ENTRY TO INSURE SATISFACTORY LOCKING PERFORMANCE.1111PART CODING:F 2 2 NKTE - 048NUT - HEX, NYLON CAP55MATERIALTHREAD SIZENUT TYPEFINISHPOST PLATE TEATMENT - (PER SAE AMS QQ-P-416,TYPE II) ON CADMIUM PLATED PARTS, PREFIX COM-PLETE PART NUMBER WITH LETTER “F”.11PJ - 1181NKE - NKTENKM - NKTMISSUED: 4 AUG 57 REVISED: 11 3 NOV 2003

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PARTNUMBERTHREADAREFBCREF22K1-62 .346 .221 .323 .140 1,130 .6322K2-62 .1380-32UNJC-3B .291 .377 - .365 .413 .230 .166 .268 .110 560 .4022K3-62 .596 .221 .568 .140 1,130 .6022K1-82 .346 .221 .323 .140 1,720 .52.1640-32UNJC-3B .377 - .365 .413 .23022K2-82 .291 .166 .268 .110 860 .3922K1-02 .346 .221 .323 .140 2,460 .4922K2-02 .1900-32UNJF-3B .291 .377 - .365 .413 .230 .166 .268 .110 1,230 .3822K3-02 .596 .221 .568 .140 2,460 .5622K1-048 .449 .291 .420 .210 4,100 1.1022K2-048 .2500-28UNJF-3B .374 .502 - .490 .557 .316 .216 .345 .135 .7942K3-048 .700 .291 .665 .210 4,100 1.3022K1-054 .3125-24UNJF-3B .601 .566 - .551 .624 .376 .431 .569 .335 7,390 2.1022K1-064 .3750-24UNJF-3B .665 .691 - .675 .763 .445 .466 .632 .350 11,450 3.50GREFH1MAXH2MAXLREFULTIMATETENSILESTRENGTH LB MINAPPROXWEIGHTLB/100MATERIAL:NUT AND CAP - STEELFINISH:NUT AND CAP - CADMIUM PLATE, SAE AMS-QQ-P-416,TYPE I, CLASS 3LOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)THREAD SQUARENESS: ESNA SPEC 405, GROUP ITHREADS: AS8879REFERENCE STANDARDS:11PERFORMANCE: NA SM25027, SEALING - 80 PSI (SEE APPLICATION)1111PART CODING:F 2 2 K1 - 02APPLICATION: TYPES K1, K2, AND K3 CAP NUTS ARE DESIGNED FOR USE IN PLACE OF REGULAR HEX NUTS IN APPLICA-TIONS WHERE FOR REASONS OF SAFETY OR APPEARANCE, IT IS DESIREABLE TO COVER EXPOSED BOLT ENDS. THEY AREALSO SUITABLE FOR SEALING INTERNAL OR EXTERNAL PRESSURES, UP TO 80 PSI PAST THE BOLT THREADS, PROVIDED APROPER SEAL IS EFFECTED BETWEEN THE NUT SEAT AND ITS MATING SURFACE.NOTES:1. FOR OTHER TYPES OF HEX CAP NUTS, SEE ESNA STANDARD DRAWINGS OF TYPES NKM, NKTM, NKE, AND NKTE.2. “H2” MAXIMUM DESIGNATES THE MAXIMUM RECOMMENDED BOLT ENTRY TO AVOID CONTACT WITH THE CAP.11NUT - HEX, METAL CAPMATERIALTHREAD SIZENUT TYPEFINISHPOST PLATE TEATMENT - (PER SAE AMS QQ-P-416,TYPE II) ON CADMIUM PLATED PARTS, PREFIX COM-PLETE PART NUMBER WITH LETTER “F”.11PJ - 1677K1 - K2 - K3ISSUED: 4 NOV 57 REVISED: 11 3 NOV 200356

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2MATERIAL:ZE1801 - STEELZE1802 - STAINLESS STEEL, AISI 347FM OR EQUIV, AMS 5642ZE1803 - STAINLESS STEEL, AISI 303 OR EQUIV, AMS 5640ZE1813 - STAINLESS STEEL, AISI 303 OR EQUIV, AMS 5640FINISH:ZE1801 - CADMIUM PLATE, SAE AMS-QQ-P-416 TYPE I,CLASS 2 (SEE NOTE 2)ZE1802 & ZE1803 - SILVER PLATE, AMS 2410ZE1813 - DRY FILM LUBRICANT, ESNALUBE 382THREAD : AS8879, MINIMUM “GO GAGE” ENTRY IS FROM THE BOTTOM OF THE NUT TO ONE AND A HALF THREADS BELOW THEBOTTOM OF THE SLOTS (PRIOR TO ADDITION OF DRY FILM LUBRICANT)THREAD SQUARENESS: ESNA SPEC 405, GROUP II (SIZES –02 THRU –080)NASM25027 (ALL OTHER SIZES)PART CODING:F ZE1801 - 4NUT TYPEPERFORMANCE: ZE1801, ZE1803, AND ZE1813, NASM25027 FOR TEMPERATURE 450°F AND 800°FZE1802, NASM7873 FOR TEMPERATURE 1200°FTHREAD SIZEPOST PLATE TEATMENT - (PER SAE AMS QQ-P-416, TYPE II) ON CADMIUM PLATED PARTS,PREFIX COMPLETE PART NUMBER WITH LET-TER “F”.APPLICATION: THE ABOVE DESIGNS ARE PARTICULARLY SUITED FOR USE IN APPLICATIONS INVOLVING PROLONGED SERVICEAT HIGH TEMPERATURES. TYPE ZE1802, ZE1803, AND ZE1813 BEING MADE OF STAINLESS STEEL OFFER THEADDED ADVANTAGE OF BEING CORROSION RESISTANT AND NON-MAGNETIC.NOTES: 1. TYPES ZE1801, ZE1803, AND ZE1813 CONFORM TO THE REQUIREMENTS OF MS20365, NASM21045, AND NASM21046AS APPLICABLE. TYPE ZE1802 PARTS CONFORM TO THE REQUIREMENTS OF MS20500.1 2. TYPE ZE1801 ONLY IS ALSO AVAILABLE WITH MOLYBEDNUM DISULPHIDE FINISH OVER CADMIUM PLATE, SPECIFIEDBY ADDING PREFIX LETTERS “RM” TO PART NUMBER SUCH AS “RMZE1801-048”.SUCH PARTS MEET SALT SPRAY REQUIREMENTS OF SAE AMS-QQ-P-416, TYPE II.PJ - 1324REFERENCE STANDARDS:AN363MS20500NASM21046CAD.PLATEDSTEELMS20365NASM21045NAS1021ESNA PART NUMBERSILVERPLATEDSTAINLESS347 FMSILVERPLATEDSTAINLESS303DRY FILMLUBESTAINLESS303ZE1801-4 ZE1803-40 ZE1813-40 .12 .1120-40UNJC-3B .157 .251 - .243 .268 .079ZE1801-62 ZE1803-62 ZE1813-62 .27 .1380-32UNJC-3B .188 .313 - .305 .339 .125ZE1801-82 ZE1802-82 ZE1803-82 ZE1813-82 .46 .1640-32UNJC-3B .250 .345 - .336 .374 .167ZE1801-3 ZE1802-3 ZE1803-3 ZE1813-3 .1900-32UNJF-3B.53ZE1801-04.1900-24UNJC-3B.250 .376 - .367 .410 .166ZE1801-4 ZE1802-4 ZE1803-4 ZE1813-4 .2500-28UNJF-3B.90ZE1801-040 ZE1803-040 ZE1813-040 .2500-20UNJC-3B.328 .439 - .430 .482 .229ZE1801-5 ZE1802-5 ZE1803-5 ZE1813-5 .3125-24UNJF-3B1.30ZE1801-058.3125-18UNJC-3B.360 .502 - .492 .552 .270ZE1801-6 ZE1802-6 ZE1803-6 ZE1813-6 .3750-24UJNF-3B1.90ZE1801-066.3750-16UNJC-3B.469 .564 - .553 .622 .350ZE1801-7 ZE1802-7 ZE1803-7 ZE1813-7 2.10 .627 - .616 .694.4375-20UNJF-3B .469ZE1801-7U ZE1802-7U ZE1803-7U ZE1813-7U 2.90 .690 - .679 .766.349ZE1801-8 ZE1802-8 ZE1803-8 ZE1813-8 4.10 .5000-20UNJF-3B .610 .752 - .741 .837 .458ZE1801-9 ZE1803-9 ZE1813-9 6.40 .5625-18UNJF-3B .704 .877 - .865 .978 .505ZE1801-10 ZE1803-10 ZE1813-10 7.90 .6250-18UNJF-3B .766 .940 - .928 1.051 .572ZE1801-12 11.00 .7500-16UNJF-3B .891 1.064 - 1.052 1.191 .6571APPROXWEIGHTLB/1001NUT - HEX, LIGHT,450°F, 800°F, & 1200°F57THREAD1AMAXB1CREFLREF1ISSUED: 2 NOV 95 REVISED: 1 3 NOV 2003ZE1801-ZE1802ZE1803-ZE1813

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PART NUMBERREGULAR HEIGHTF12NE4717-02 .188 .104 1,000 20 .28.1900-32UNJF-3B .376 - .367 .410 .093F12NE4753-02 .250 .115 1,950 35 .35F12NE4717-048 .188 .104 1,800 45 .35.2500-28UNJF-3B .439 - .430 .482 .093F12NE4753-048 .281 .131 3,500 80 .46F12NE4717-5 .188 .104 2,900 90 .46.3125-24UNJF-3B .502 - .492 .552 .093F12NE4753-5 .328 .178 5,500 225 .89F12NE4717-6 .219 .120 4,100 125 .60.3750-24UNJF-3B .564 - .553 .622 .140F12NE4753-6 .406 .225 9,000 325 1.15F12NE4717-7 .219 .120 5,000 225 1.10.4375-20UNJF-3B .690 - .679 .766 .140F12NE4753-7 .453 .272 12,200 575 2.50F12NE4717-8 .250 .151 5,600 300 1.31.5000-20UNJF-3B .752 - .741 .837 .140F12NE4753-8 .563 .365 16,600 900 3.24F12NE4717-9 .313 .198 7,800 400 2.44.5625-18UNJF-3B .877 - .865 .978 .172F12NE4753-9 .609 .396 21,200 1,100 5.10F12NE4717-10 .313 .198 10,000 600 2.50.6250-18UNJF-3B .940 - .928 1.051 .172F12NE4753-10 .719 .474 27,400 1,600 7.00F12NE4717-12 .375 .261 15,500 1,100 3.90.7500-16UNJF-3B 1.064 - 1.052 1.191 .172F12NE4753-12 .813 .568 40,000 2,800 9.90F12NE4717-14 .438 .323 22,800 1,900 6.90.8750-14UNJF-3B 1.252 - 1.239 1.403 .172F12NE4753-14 .906 .662 54,600 4,600 14.00F12NE4717-16 1.0000-12UNJF-3B .500 1.440 - 1.427 1.615 .172 .386 35,500 3,000 8.20MATERIAL:STEEL - HEAT TREATEDREDUCED HEIGHTTHREADA±.015BCMINK±.015L±.010ULTIMATETENSILESTRENGTHLB. MIN.MAXINSTL.TORQUEIN. LB.APPROXWEIGHTLB/100FINISH:CADMIUM PLATE, SAE AMS-QQ-P-416, TYPE II, CLASS 2LOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)THREADS: AS8879THREAD SQUARENESS: NASM25027PERFORMANCE: NASM25027 EXCEPT LOCKING TORQUE, VIBRATION TIME, AND TENSILE IN ACCORDANCE WITH MS17825 ANDMS17826.1APPLICATION: TYPES NE4717 AND NE4753 WERE DESIGNED TO SATISFY A RECOGNIZED NEED FOR AN EXTRA “FAIL SAFE” FEA-TURE IN THOSE CRITICAL APPLICATIONS SPECIFYING THE USE OF COTTERPINNED AN310 AND AN320 CASTELLATED NUTS.TYPICAL CASES ARE JOINTS IN AIRCRAFT CONTROL SYSTEMS WHERE AN EXTERNALLY THREADED PART WOULD SERVE AS ANAXLE OR AXIS OF ROTATION FOR ANOTHER PART. FOR EXAMPLE, THE INSTALLATION OF BEARINGS, BUSHINGS, PULLEYS,CRANKS, LINKAGES, CAM FOLLOWERS, ETC. BEING FUNCTIONALLY INTERCHANGEABLE WITH AN320 AND AN310, TYPE NE4717AND NE4753 CAN BE READILY ADAPTED TO RETROFIT PROGRAMS WITHOUT NEED FOR MODIFICATION OR CHANGE IN OTHERASSEMBLYREFERENCE STANDARDS:MS17825MS178261111NUT - HEX, CASTELLATED,SELF-LOCKING, 250°FPJ - 2756 PJ - 2761NE4717NE4753ISSUED: 2 NOV 95 REVISED: 1 3 NOV 200358

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PARTNUMBERTHREADA±.01512NH-4 .2500-28UNJF-3B .334 .376 - .367 .420 .531 .090 6,980 1.012NH-5 .3125-24UNJF-3B .396 .439 - .430 .491 .593 .090 11,100 1.412NH-6 .3750-24UNJF-3B .453 .502 - .492 .562 .687 .099 17,100 2.012NH-7 .4375-20UNJF-3B .516 .564 - .553 .633 .781 .107 23,200 2.812NH-8 .5000-20UNJF-3B .563 .627 - .616 .704 .875 .118 30,900 3.512NH-9 .5625-18UNJF-3B .625 .690 - .679 .774 .968 .127 39,200 4.512NH-10 .6250-18UNJF-3B .672 .783 - .772 .882 1.062 .136 49,000 6.412NH-12 .7500-16UNJF-3B .781 .940 - .928 1.059 1.250 .185 71,200 11.012NH-14 .8750-14UNJF-3B .953 1.064 - 1.052 1.200 1.438 .219 97,100 15.012NH-164 1.0000-14UNJS-3B 1.125 ±.031 1.190 - 1.177 1.343 1.625 .328 128,700 25.012NH-18 1.1250-12UNJF-3B 1.296 ±.031 1.377 - 1.364 1.556 1.875 .438 162,100 36.012NH-20 1.2500-12UNJF-3B 1.406 ±.031 1.502 - 1.489 1.698 2.125 .500 202,300 50.012NH-22 1.3750-12UNJF-3B 1.531 ±.031 1.627 - 1.614 1.842 2.313 .562 246,600 62.012NH-24 1.5000-12UNJF-3B 1.656 ±.031 1.814 - 1.801 2.055 2.500 .656 295,600 85.0BCREFDMAXFREFULTIMATETENSILESTRENGTHLB. MIN.APPROXWEIGHTLB/100MATERIAL:ALLOY STEEL - AISI 4130, 4340, 8740 OR EQUIVALENT.FINISH:CADMIUM PLATE, SAE AMS-QQ-P-416, TYPE I, CLASS 2(SEE CODE)LOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)MAGNETIC PARTICLE INSPECTION:PARTS INDIVIDUALLY INSPECTED IN ACCORDANCE WITH ASTM E1444THREAD SQUARENESS: ESNA SPEC 405, GROUP II, SIZES –048 THRU –080ESNA SPEC 405, GROUP I, SIZES –098 AND LARGERTHREADS: AS8879POST PLATE TEATMENT - (PER SAE AMS QQ-P-416, TYPE II) ON CADMIUM PLATED PARTS,PREFIX COMPLETE PART NUMBER WITH LET-TER “F”.PERFORMANCE: NASM25027, EXCEPT MIN TENSILE STRENGTH EQUIVALENT TO 180,000 PSI AT 98% OF THE BASIC PITCH DIAMETER, FOR SIZES –4, -5 AND THE BASIC PITCH DIAMETER FOR SIZES –6 AND LARGER. THE VALUES TABULATED1 ABOVE WILL BE OBTAINED WHEN TENSILE TESTED ON A BOLT HAVING A MINIMUM TENSILE STRENGTH OF200,000 PSI.APPLICATIONS: THIS DESIGN IS SUITED FOR APPLICATION INVOLVING HIGH STRENGTH BOLTS SUCH AS NASM21250 AND THENASM20004 SERIES.REFERENCE STANDARDS:1111PART CODING:F 12NH - 4NUT TYPENUT - DOUBLE HEX,HIGH TENSILE, 180,000 PSI, 350°F1THREAD SIZEPJ - 1419NH1ISSUED: 2 NOV 95 REVISED: 1 3 NOV 200359

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PARTNUMBERTHREAD SIZEAMAX MIN MAX MIN52CE20136-M6 M6 X 1-6H 8.0 7.2 10.00 9.78 11.05 3.0 0.3252CE20136-M8 M8 X 1.25-6H 9.5 8.5 13.00 12.73 14.38 3.7 0.6452CE20136-M10 M10 X 1.5-6H 12.5 11.5 15.00 14.73 16.64 5.6 1.0752CE20136-M12 M12 X 1.75-6H 14.9 13.9 18.00 17.73 20.03 6.7 1.7852CE20136-M16 M16 X 2-6H 19.1 17.9 24.00 23.67 26.75 9.1 4.0052CE20136-M20 M20 X 2.5-6H 22.8 21.5 30.00 29.16 32.95 10.9 7.55BCMINLMINAPPROX.WEIGHTkg/100MATERIAL: STEELHARDNESS: Rc 26-36FINISH: CADMIUM PLATE AND WAXPERFORMANCE: IFI-514 PROPERTY CLASS 10CODE: FOR A PART WITH CADMIUM PLATE, YELLOW CHROMATE FORTIFICATION AND WAX,PREFIX PART NUMBER WITH “F”. EXAMPLE: “F52CE20136-M6”ALL DIMENSIONS IN MILLIMETERS (DO NOT SCALE)REFERENCE STANDARDS:NUT - HEX, COLLARLOKPROPERTY CLASS 10 STYLE I METRICPJ - 0044-1C52CE20136ISSUED: 10 FEB 88 REVISED:60

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L21C D EL M APPROX.WEIGHTBASIC PARTNUMBERMAX MIN MAX MIN MIN MAX MIN MIN MINkg/100CE12698-066 .3750-16UNC-2B .425 .405 .564 .551 .628 .810 .060 .200 .730 2.7CE12698-8 .5000-20UNF-2BCE12698-083 .5000-13UNC-2BCE12698-10 .6250-18UNF-2BCE12698-101 .6250-11UNC-2BCE12698-12 .7500-16UNF-2BCE12698-120 .7500-10UNC-2B.555.690.825.535.670.805.752.9391.127.736.9221.088.8401.0511.2401.0701.3301.585.080.100.110.260.320.380.9821.2301.4726.011.519.2THREAD SIZEA BMATERIAL:STEELFINISH:“22” - CADMIUM PLATE AND WAX“F22” - CADMIUM PLATE, DICHROMATE COATING, AND WAX“23” - ZINC PHOSPHATE AND OILPERFORMANCE:LOCKING TORQUE AND MINIMUM TENSILE STRENGTH PERIFI 100/107, GRADE G. (PROOF LOAD STRESS - 150,000 PSI)REFERENCE STANDARDS:PART CODING:F 2 2 CE12698 - 066MATERIALNUT - HEX, FLANGE, COLLARLOKTHREAD SIZENUT TYPEFINISHPOST PLATE YELLOW DICHROMATE CONVERSIONCOATING ON CADMIUM PLATED PARTS ONLY.PJ - 0044-3CE12698ISSUED: 21 NOV 80 REVISED: 1 4 FEB 8861

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PARTNUMBERA B C D E X ULTIMATETENSILETHREAD SIZEMAX MAX MIN MAX MIN MAX MAXSTRENGTHLB. MIN.APPROXWEIGHTLB/100CE12605-20 1.250-12UNF-2B .630 1.625 1.575 1.876 1.796 2.125 .200 .029 80,000 24.6CE12605-2018 1.250-18UNEF-2B .630 1.625 1.575 1.876 1.796 2.125 .200 .029 80,000 24.3CE12605-24 1.500-12UNF-2B .750 1.875 1.812 2.165 2.066 2.250 .290 .031 90,000 31.3CE12605-2418 1.500-18UNEF-2B .750 1.875 1.812 2.165 2.066 2.250 .290 .031 90,000 30.9CE12605-2812 1.750-12UN-2B .731 2.250 2.175 2.598 2.480 3.000 .230 .040 90,000 52.0MATERIAL:STEEL, HEAT TREATED TO Rc 26-38FINISH:ZINC PHOSPHATE AND OIL, MIL-DTL-16232, TYPE Z, CLASS 23THREADS:ANSI B1.13REFERENCE STANDARDS:NOTES:1. BEARING SURFACE AND THREAD P.D. RUN TRUE TO EACH OTHER WITHIN “X”NUT - HEX, FLANGE, COLLARLOKPJ - 0044-2CE12605ISSUED: 21 NOV 80 REVISED: 3 3 NOV 200362

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PART NUMBERSTEEL UNPLATEDSTEELZINC PHOSPHATEAND OILTHREAD SIZEA29CU-101 23CU-101 .625-11UNC-2B .861 .831 1.062 1.031 1.175 1.009 .562 33,900 15.649CU-120 43CU-120 .750-10UNC-2B 1.005 .975 1.250 1.212 1.382 1.188 .711 50,100 24.549CU-149 43CU-149 .875-9UNC-2B 1.125 1.095 1.438 1.394 1.589 1.366 .780 69,300 35.049CU-168 43CU-168 1.000-8UNC-2B 1.265 1.235 1.625 1.575 1.796 1.544 .860 90,900 50.0BCDMAX MIN MAX MIN MIN MINLREFULTIMATETENSILESTRENGTHLB. MIN.APPROX.WEIGHTLB/100MATERIAL:“2” - STEEL“4” - STEELFINISH:“3” - ZINC PHOSPHATE AND OIL“9” - UNPLATEDPERFORMANCE:LOCKING TORQUE PER IFI-100/107 AND NASM 25027REFERENCE STANDARDS:2PART CODING:4 9 CU - 149NUT - HEX, HEAVY, COLLARLOKFINISHMATERIALTHREAD SIZENUT TYPEPJ - 0044-7CUISSUED: 21 NOV 80 REVISED: 2 3 NOV 200363

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PARTNUMBERTHREAD SIZEMAX -0.02 MIN -0.015 MAX23CBR32-N00 0.391-32SAE N00 .276 .625 .120 .750 .62523CBR32-N01 0.469-32SAE N01 .369 .750 .120 .875 .71923CBR32-N02 0.586-32SAE N02 .369 .812 .120 1.000 .81323CBR32-N03 0.664-32SAE N03 .401 .937 .120 1.125 .93823CBR32-N04 0.781-32SAE N04 .432 1.187 .178 1.375 1.12523CBR32-N05 0.969-32SAE N05 .463 1.375 .178 1.562 1.28123CBR32-N06 1.173-18SAE N06 .463 1.562 .178 1.750 1.50023CBR32-N07 1.376-18SAE N07 .494 1.875 .178 2.062 1.81323CBR32-N08 1.563-18SAE N08 .510 2.062 .240 2.250 2.00023CBR32-N09 1.767-18SAE N09 .510 2.344 .240 2.531 2.28123CBR32-N10 1.967-18SAE N10 .573 2.500 .240 2.687 2.43823CBR32-N11 2.157-18SAE N11 .573 2.718 .240 2.968 2.65623CBR32-N12 2.360-18SAE N12 .604 2.906 .240 3.156 2.84423CBR32-N13 0.391-32SAE N01 .276 .625 .120 .1000 .62523CBR32-N14 0.469-32SAE N02 .369 .750 .120 .1125 .719AB+.010CD+.005EREFERENCE STANDARDS:MATERIAL:STEELFINISH:ZINC PHOSPHATE AND OILTHREADS:SAE J505NOTE:TYPE CBR32 IS NOT AVAILABLE FROM ESNA. IT IS INCLUDED ONLY TOILLUSTRATE A COLLARLOK ® APPLICATION. PARTS SHOULD BE ORDEREDFROM:STANDARD LOCKNUT & LOCKWASHER, INCP.O. BOX 19901212 S. RANGELINE ROADCARMEL, IN 46032 - 4900TEL: 1-317-846-4231FAX: 1-317-573-5515NUT - BEARING RETAINER,COLLARLOK64PJ - 0044-30CBR32ISSUED: 22 FEB 88 REVISED: 1 1 MAY 91

This is how the Eslok ® Locking Patch Works . . .The Red Nylon Locking Patch is permanently fused to an area of the nut threadswhich is dimensionally controlled for each thread size to assure pre-determinedlevels of locking torque. The metal threads of the nut are not affected in any wayand the tensile strength of the nut is unchanged.THE RED NYLON LOCKING PATCHThe nylon patch is thickest in the center… and tends to “featherout”along the edges. This permits an easy “lead-in” for the bolt,which enters freely into either end of the nut.As the mating bolt threads fully engage the red locking patch,the nylon is gradually compressed…building locking torquesmoothly…completely filling in all axial tolerances between themale and female threads (see A). This action forces a strongmetal-to-metal contact between the thread flanks opposite tothe locking patch (see B). A three-way locking action is completedby the vibration-damping, plastic-smooth, precision gripof the nylon-locking patch.The Eslok Nut is removable…and re-usable. Nylon’s plasticsmoothlocking grip never galls or seizes bolt threads, making iteasy to wrench off; nylon’s “memory” makes it try to return to itsoriginal conditions when the bolt is removed, thus assuring renewedlocking torque upon re-use.

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L22THREADSIZEWHMAX MIN MAX MINAPPROXWEIGHTLB/1000PART NUMBERFINISHPLAIN ZINC CADMIUMZINCPLATE-CHROMATEFORTIFIEDCADMIUMPLATE-CHROMATEFORTIFIED5/8-11 .938 .922 .559 .535 73.3 30012 30032 30052 30072 300925/8-18 .938 .922 .559 .535 73.3 30013 30033 30053 30073 300933/4-10 1.125 1.088 .665 .617 119.0 30014 30034 30054 30074 300943/4-16 1.125 1.088 .665 .617 119.0 30015 30035 30055 30075 300957/8-9 1.313 1.269 .776 .724 190.0 30015 30036 30056 30076 300967/8-14 1.313 1.269 .776 .724 190.0 30017 30037 30057 30077 300971-8 1.500 1.450 .887 .831 283.0 30018 30038 30058 30078 300981-14 1.500 1.450 .887 .831 283.0 30019 30039 30059 30079 30099NOTE: LOCKING DEVICE LOCATED TO PERMIT ASSEMBLY OF NUT FROM EITHER END.MATERIAL: STEELISSUED: 2 AUG 62 REVISED: 2 1 FEB 88REFERENCE STANDARDS:ESLOK NUT, FINISHED HEXAGON,SELF-LOCKING, GRADE A6630000SERIES

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L22THREADSIZEWHMAX MIN MAX MINAPPROXWEIGHTLB/1000PLAINPART NUMBERFINISH5/8-11 .938 .922 .559 .535 73.3 31312 31332 313925/8-18 .938 .922 .559 .535 73.3 31313 31333 313933/4-10 1.125 1.088 .665 .617 119.0 31314 31334 313943/4-16 1.125 1.088 .665 .617 119.0 31315 31335 313957/8-9 1.313 1.269 .776 .724 190.0 31316 31336 313967/8-14 1.313 1.269 .776 .724 190.0 31317 31337 313971-8 1.500 1.450 .887 .831 283.0 31318 31338 313981-14 1.500 1.450 .887 .831 283.0 31319 31339 31399ZINCCADMIUMPLATE-CHROMATEFORTIFIEDNOTE: LOCKING DEVICE LOCATED TO PERMIT ASSEMBLY OF NUT FROM EITHER ENDMATERIAL: STEEL1. CADMIUM PLATE, CHROMATE FORTIFIED PARTS 31392 THRU 31399 MEET ORDNANCECORPS SPECIFICATION MS 51922.2. HEAVY HEXAGON AND FINISHED HEXAGON THICK ESLOK NUTS ARE MANUFACTUREDTO SPECIAL ORDER. PRICES AND AVAILABILITY ON REQUEST.3. FINISHED HEXAGON ESLOK NUTS IN BRASS, ALUMINUM, AND STAINLESS STEEL AREMANUFACTURED TO SPECIAL ORDER. PRICES AND AVAILABILITY ON REQUEST.ISSUED: 6 AUG 80 REVISED: 2 1 FEB 88REFERENCE STANDARDS:ESLOK NUT, FINISHED HEXAGONSELF-LOCKING, GRADE B31300SERIES67

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2Whatshapeis aqualityfastener?Here are a handful of ELASTIC STOP ® nuts. Each hasESNA’s familiar red locking collar…is self-locking andvibration-proof. Each is a readily assembled, one-pieceunit. Each provides positive protection against threadcorrosion…prevents liquid seepage along bolts. Eachis made from the finest of raw materials. Each is exactlycontrolled as to finished dimensions, class ofthread fit and finish. Each is now in use on critical applications,with a record for uniform high quality that isunmatched.Most of them are standard parts. Some originated asthe result of a specific request for ESNA’s help with animportant fastening problem.Isn’t it logical to call on us with your next fasteningproblem?68

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2SECTION 2SELF-RETAINING NUTSPartNumberNCFMANKCFMANC4284NCNDPageNumber717375778269

SUGGESTED METHODS FOR HANDOR SEMI-AUTOMATIC INSTALLATIONSimple punch and dolly tools for installing standard, miniature and floatingtypes of clinch nuts may be obtained from ESNA. Detail drawingsof these tools are included in this catalog. To insure that clinch nuts willnot have any tendency to push out or twist out, recommended installationprocedures outlined in this catalog should be carefully followed.INSTALLATION METHODSHAND TOOLSThe hand tools shown above arefor short run or prototype assembliesand are not recommendedfor production.There are several types of installationmethods possible with ESNA standard andminiature clinch nuts. The preferredmethod is entirely dependent upon the natureof the assembly, the volume of productionand the tools available. The mostcommon methods are illustrated here andwill serve as a guide to the method mostsuitable to your production requirements.It is important that the procedures outlinedin this catalog be followed to insure troublefree production and superior product performance.AUTOMATIC PRODUCTION EQUIPMENTAutomatic clinch and press nut installationmachines are available to meet the requirementsfor high volume production. Interchangeabletooling, reduced installationtime, flexibility and accuracy are some ofthe advantages.ARBOR PRESS INSTALLATIONUse of an arbor or light powerpress is simple and fast for largeor small production runs. Standardor miniature clinch nut toolsadapt readily to the press givingthe operator full control over position,pressure and speed of production.HAND RIVETER TOOLSStandard punch and dolly toolscan be used in a hand operatedsqueeze type riveter as illustrated.In this method steady controlledpressure can be exerted and thehand tool can be moved to variouspositions on larger units to facilitateproduction. This method isparticularly suited to units withnarrow flanges or restricted accessareas.DRILL PRESSSPINNING METHODBoth standard and miniature clinchnuts can be quickly and efficientlyinstalled by the spinning techniqueusing a spin riveter or shop drillpress. ESNA punch and dollytools readily adapt to either machineand give high production installationin large or small components.Spinning automaticallycenters the punch on the shankinsuring equal force against theshank walls.The typical unit illustrated is suitable to use for inserting standard or miniature clinch nuts or press nuts.The machine inserts, presses and stakes the nuts without requiring that the work be reversed. Othermodels semi-automatic or automatic, depending on requirements, are available.70

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2MATERIAL:STEELSTAINLESS STEEL, AISI 303 OR EQUIV.ESNA PART NUMBERSTEELSTAINLESS STEELFINISH:STEEL - CADMIUM PLATE, SAE AMS-QQ-P-416 TYPE I, CLASS 3.STAINLESS STEEL - UNPLATEDLOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)+.003±.010 ±.005 -.002 MAX ±.005 ±.003 ±.002 REF22NCFMA1-26 79NCFMA1-26 .040 .040 .03.0860-56UNJC-3B .075 .172 .098 .150 .020 .12922NCFMA2-26 79NCFMA2-26 .060 .060 .0322NCFMA1-40 79NCFMA1-40 .040 .040 .05.1120-40UNJC-3B .090 .203 .130 .182 .020 .16022NCFMA2-40 79NCFMA2-40 .060 .060 .0512NCFMA1-62 79NCFMA1-62 .040 .040 .11.1380-32UNJC-3B .130 .281 .154 .242 .025 .19212NCFMA2-62 79NCFMA2-62 .060 .060 .1212NCFMA1-82 79NCFMA1-82 .040 .040 .16.1640-32UNJC-3B .160 .312 .180 .268 .025 .22312NCFMA2-82 79NCFMA2-82 .060 .060 .1712NCFMA1-02 79NCFMA1-02 .040 .040 .21.1900-32UNJF-3B .179 .344 .212 .287 .030 .25412NCFMA2-02 79NCFMA2-02 .060 .060 .2299THREADPART CODING:A B D G H L M N APPROXF 1 2 NCFMA 2 - 02THREAD SIZESHANK LENGTHNUT TYPEWEIGHTLB/100THREADS: AS8879FINISHMATERIAL9PERFORMANCE: TORQUE PER NASM25027, SIZES –82 AND LARGERAPPLICATION:9POST PLATE TEATMENT - PER SAE AMS-QQ-P-416, TYPE II.TYPE NCFMA PARTS ARE PARTICULARLY SUITED FOR USE IN APPLICATIONS INVOLVING INSTALLATIONS IN THIN ALUMINUM OR SOFT STEEL SHEETS OR PLATES HAVINGSMALL MOUNTING AREAS MAKING THE USE OF A MINIATURE FIXED TYPE NUT DESIRABLE. THE ADAPTABILITY OF NCFMA’S TWO SHANK LENGTHS TO MANY SHEET THICK-NESSES IS ALSO WORTHY OF NOTE SINCE IT MINIMIZES NUT STOCKING REQUIREMENTS FOR NUMEROUS APPLICATIONS.SHANK LENGTH SELECTION:NCFMA1 PARTS ARE RECOMMENDED FOR INSTALLATIONS INVOLVING SHEET THICKNESSES UP TO APPROXIMATELY .050”. PRACTICAL FLUSHNESS CAN BE ACHIEVED INTHICKNESSES AS LOW AS .030”NCFMA2 PARTS ARE RECOMMENDED FOR USE IN SHEET THICKNESSES OF .050” AND HEAVIER.FOR OPTIMUM INSTALLATION IT IS RECOMMENDED THAT THE PROPER TOOLS BE USED, AND THAT THE MAXIMUM TABULATED CLINCHING PRESSURES NOT BE EXCEEDED.EXCEEDING THESE VALUES CAN, DEPENDING UPON THE MATERIAL INTO WHICH THE NUT IS INSTALLED, CAUSE DISTORTION OF THE WORK AND/OR THE NUT ITSELF.THE MOST SATISFACTORY INSTALLATIONS ARE OBTAINED WHEN THE NUT IS PRESSED INTO THE WORK UNTIL ITS SHOULDER RESTS AGAINST THE SURFACE OF THEWORK. THE SHANK SHOULD THEN BE FLAREDIT IS RECOMMENDED THAT THE ACTING SURFACE OF THE PUNCH FACE BE MAINTAINED. BOTH THE PUNCH AND THE DOLLY SHOULD BE REGULARLY INSPECTED ANDCLEANED OF ANY PLATING BUILD-UP IN ORDER TO ASSURE PROPER SEATING OF THE NUT.FLUSH MOUNTING PUNCHES ARE INTENDED FOR USE WITH NO. 1 SHANK LENGTH PARTS IN .030 - .040” THICK SHEET AND NO. 2 SHANK LENGTH PARTS IN .050 - .060” THICKSHEET. FOR SHEET THICKNESSES .040 - .050” IT IS RECOMMENDED THAT NO. 1 SHANK LENGTH PARTS BE USED WITH INTERNAL FLARING PUNCHES AND FOR THICK-NESSES GREATER THAN .060”, NO. 2 SHANK LENGTH PARTS BE USED WITH INTERNAL FLARING PUNCHES.NASM45938/5BASICPARTNUMBERNCFMA1-26NCFMA2-26NCFMA1-40NCFMA2-40NCFMA1-62NCFMA2-62NCFMA1-82NCFMA2-82NCFMA1-02NCFMA2-02REFERENCE STANDARDS:FLUSHPUNCHCPMF1CPMF1CPMF1CPMF2CPMF2INSTALLATION TOOLSINTERNALPUNCHCPM2CPM4CPM6CPM8CPM10DOLLYCDMA21CDMA41CDMA61CDMA81CDMA101MAXIMUMRECOMMENDEDCLINCHING PRESSURE(LBS)30060075010001500INSTALLATION HOLEDIAMETERSMIN.124.155.187.218.249MAX.126.157.189.220NUT - CLINCH, FLUSH MOUNTING,MINIATURE, NYLON INSERT, 350°F.251PJ - 2518NCFMAPAGE 1 OF 2ISSUED: 23 NOV 59 REVISED: 9 3 NOV 200371

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2FLUSH MOUNTING PUNCHA B CPUNCHPARTNUMBER±.015+.000-.002±.015CPMF1 .307 .200 .966CPMF2 .419 .300 1.022MATERIAL:TOOL STEEL, 60 Rc REFFINISH:UNPLATEDINTERNAL FLARING MOUNTING PUNCHPUNCHPARTNUMBERA B C D E±.015+.000±.015+.000±.015-.002 -.002CPM2 .873 .120CPM4 .307 .200 .888 .151 .250MATERIAL: TOOL STEEL, 60 Rc REFFINISH: UNPLATEDCPM6 .904 .183CPM8.419 .300.920 .214.188CPM10 .935 .245DOLLY - MINIATURE, CLINCH NUTREFERENCE STANDARDS:NASM45938/5DOLLY - MINIATURE, CLINCH NUTA B CDOLLYPARTNUMBER+.000 +.003±.015 ±.015-.002 -.000CDMA21 .213 .151CDMA41 .307 .200 .243 .183CDMA61 .307 .243CDMA81 .333 .269.419 .300CDMA101 .359 .288NUT - CLINCH, FLUSH MOUNTING,MINIATURE, NYLON INSERT, 350°FABHANDLEPARTNUMBER±.015+.002-.000CHM1 .312 .201CHM2 .437 .301DMATERIAL:TOOL STEEL, 60 Rc REFFINISH:UNPLATEDPJ - 2518NCFMAPAGE 2 OF 2ISSUED: 23 NOV 59 REVISED: 9 3 NOV 200372

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2MATERIAL:STEELSTAINLESS STEEL – AISI 303 OR EQUIVALENTCAP – RED NYLONFINISH:STEEL – CADMIUM PLATE, AMS SAE-QQ-P-416, TYPE I, CLASS 3STAINLESS STEEL – UNPLATEDTHREADS: AS8879ESNA PART NUMBERSTEEL22NKCFM1-26 79NKCFM1-26 .040 .040.0860-56UNJC-3B .075 .172 .098 .150 .072 .119 .143 .129 .106 .0379NKCFM2-26 .060 .060.02022NKCFM1-40 79NKCFM1-40 .040 .040.1120-40UNJC-3B .090 .203 .130 .182 .086 .154 .176 .160 .131 .0522NKCFM2-40 79NKCMF2-40 .060 .06012NKCFM1-62 79NKCFM1-62 .040 .040 .11.1380-32UNJC-3B .130 .281 .154 .242 .130 .211 .251 .192 .17012NKCFM2-62 79NKCFM2-62 .025.1212NKCFM2-82 .1640-32UNJC-3B .160 .312 .180 .268 .162 .251 .289 .060 .233 .060 .191 .1779NKCFM2-02 .1900-32UNJF-3B .179 .344 .212 .030 .287 .177 .255 .290 .254 .221 .226STAINLESSSTEELTHREADLOCKING INSERT: RED NYLON – HEAT STABILIZED. SUITABLE FOR TEMPERATURES OF TO 350°F.PERFORMANCE: TORQUE PER NASM25027, SIZES –82 AND LARGER. SEALING ABILITY: INTERNAL AND EXTERNAL PRESSURES UP TO 80 PSI, PAST THE BOLT THREADS,PROVIDED A SUITABLE SEAL IS EFFECTED BETWEEN THE NUT BASE AND ITS MATING SURFACE.6APPLICATION: TYPE “NKCFM” NUTS FEATURE A NYLON CAP IN MINIATURIZED CLINCH NUT SERIES. THEY ARE PARTICULARLY SUITED FOR USE IN THIN ALUMINUM OF SOFTSTEEL SHEETS WHERE CONDITIONS OF THE APPLICATION NECESSITATE SEALINGOR COVERING OF SCREW ENDS.SHANK LENGTH SELECTIONNKCFM1 PARTS ARE RECOMMENDED FOR INSTALLATIONS INVOLVING SHEET THICKNESSES UP TO APPROXIMATELY .050 INCH. PRACTICALFLUSHNESS CAN BE ACHIEVED IN THICKNESSES AS LOW AS .030 INCH.NKCFM2 PARTS ARE RECOMMENDED FOR USE IN SHEET THICKNESSES OF .050 OR HEAVIER.6A B D E G H1 H2 K LM N P+.003±.015 ±.005 ±.005 MAX MIN MAX ±.015 ±.003 ±.002 REF REF-.002PART CODING:F 2 2 NKCFM 2 - 40THREAD SIZENUT TYPEAPPROXWEIGHTLB/100FOR OPTIMUM INSTALLATION IT IS RECOMMENDED THAT THE PROPER TOOLS BE USED, AND THAT THE MAXIMUM TABULATED CLINCHING PRESSURES NOT BE EXCEEDED.EXCEEDING THESE VALUES CAN, DEPENDING UPON THE MATERIAL INTO WHICH THE NUT IS INSTALLED, CAUSE DISTORTION OF THE WORK AND/OR THE NUT ITSELF.FINISHMATERIALSHANK LENGTHPOST PLATE TEATMENT - PER SAE AMS-QQ-P-416, TYPE II.6THE MOST SATISFACTORY INSTALLATIONS ARE OBTAINED WHEN THE NUT IS PRESSED INTO THE WORK UNTIL ITS SHOULDER RESTS AGAINST THE SURFACE OF THEWORK. THE SHANK SHOULD THEN BE FLARED.IT IS RECOMMENDED THAT THE ACTING SURFACE OF THE PUNCH FACE BE MAINTAINED. BOTH THE PUNCH AND THE DOLLY SHOULD BE REGULARLY INSPECTED ANDCLEANED OF ANY PLATING BUILD-UP IN ORDER TO ASSURE PROPER SEATING OF THE NUT.FLUSH MOUNTING PUNCHES ARE INTENDED FOR USE WITH NO.1 SHANK LENGTH PARTS IN .030 TO .040 THICK SHEET AND NO. 2 SHANK LENGTH PARTS IN .050 TO .060THICK SHEET. FOR SHEET THICKNESSES .040 TO .050 IT IS RECOMMENDED THAT NO.1 SHANK LENGTH PARTS BE USED WITH INTERNAL FLARING PUNCHES AND FORTHICKNESSES GREATER THAN .060 NO. 2 SHANK LENGTH PARTS BE USED WITH INTERNAL FLARING PUNCHES.BASIC PARTNUMBERSFLUSH PUNCHINSTALLATION TOOLSINTERNALPUNCHNKCFM1-26NKCFM2-26NKCFM1-40NKCFM2-40NKCFM1-62NKCFM2-62NKCMF2-82CPMF1CPMF1CPMF1CPMF2CPM2CPM4CPM6CPM8CDMA21CDMA41CDMA61CDMA813006007501000.124.155.187.218.126.157.189.220NKCFM2-02 CPMF2 CPM10 CDMA101 1500 .249 .251REFERENCE STANDARDS:DOLLYMAXIMUMRECOMMENDEDCLINCHINGPRESSURE (LBS)INSTALLATION HOLEDIAMETERSMINMAXNUT - CLINCH, FLUSH MOUNTING,MINIATURE, NYLON CAP, 350°FNOTES:1. THE LOCKING INSERT AND CAP ARE ANINTEGRAL PART.2. “H2 MAX” DESIGNATES THE MAXIMUM REC-OMMENDED BOLT ENTRY TO AVOID CON-TACT WITH THE TOP OF THE CAP. “H1 MIN”DESIGNATES THE MINIMUM RECOM-MENDED BOLT ENTRY TO INSURE SATIS-FACTORY LOCKING PERFORMANCE.PJ - 2518-3NKCFMPAGE 1 OF 2ISSUED: 2 AUG 62 REVISED: 6 3 NOV 200373

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2FLUSH MOUNTING PUNCHA B CPUNCH PARTNUMBER±.015+.000-.002±.015CPMF1 .307 .200 .966CPMF2 .419 .300 1.022MATERIAL:TOOL STEEL, 60 Rc REFFINISH:UNPLATEDINTERNAL FLARING MOUNTING PUNCHMATERIAL: TOOL STEEL, 60 Rc REFFINISH: UNPLATEDPUNCHPARTNUMBERA B C D E±.015+.000±.015+.000±.015-.002 -.002CPM2 .873 .120CPM4 .307 .200 .888 .151 .250CPM6 .904 .183CPM8.419 .300.920 .214.188CPM10 .935 .245DOLLY - MINIATURE, CLINCH NUTREFERENCE STANDARDS:DOLLY - MINIATURE, CLINCH NUTNUT - CLINCH, FLUSH MOUNTING,MINIATURE, NYLON CAP, 350°F74DOLLYPARTNUMBER+.000 +.003±.015 ±.015-.002 -.000CDMA21 .213 .151CDMA41 .307 .200 .243 .183CDMA61 .307 .243CDMA81 .333 .269.419 .300CDMA101 .359 .288HANDLEPARTNUMBERA B CA±.015B+.002-.000CHM1 .312 .201CHM2 .437 .301DMATERIAL:TOOL STEEL, 60 Rc REFFINISH:UNPLATEDPJ - 2518-3NKCFMPAGE 2 OF 2ISSUED: 2 AUG 62 REVISED: 6 3 NOV 2003

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2MATERIAL:STEELREFERENCE STANDARDS:ESNAPART NUMBERNUT - CLINCH, FLOATING, 350°F+.003-.00212NC4284-1-40 .040 .062 .1812NC4284-2-40 .1120-40UNJC-3B .132.060 .082 .19(SEE NOTE 1).446 .300 .180 .22412NC4284-1-62 .040 .062 .2312NC4284-2-62 .1380-32UNJC-3B .172.060 .082 .24(SEE NOTE 1)12NC4284-2-82 .060 .082 .30.1640-32UNJC-3B .20212NC4284-3-82 .090 .112.3112NC4284-1-02 .498 .350 .232 .040 .275 .06212NC4284-2-02 .1900-32UNJF-3B .221.060 .082 .3212NC4284-3-02 .090 .112 .33FINISH:NUT & BASKET – CADMIUM PLATE, AMS SAE-QQ-P-416, TYPE I, CLASS 3.THREADLOCKING INSERT: RED NYLON – HEAT STABILIZED. SUITABLE FOR TEMPERATURES UP TO 350°F.THREADS: AS8879FLOAT: MINIMUM RADIAL .020 WITHIN LIMITS OF “B” DIMENSION.PERFORMANCE: TORQUE PER NASM25027, SIZES –82 OR LARGER.ABCMAX MAX ±.015 ±.005 ±.005D L M NREFAPPROXWEIGHTLB/100APPLICATION: TYPE NC4284 CLINCH NUTS ARE PARTICULARLY SUITED FOR USE IN APPLICATIONS WHERE LIMITED MOUNTING OR WRENCHING AREAS MAKE USE OF MINIA-TURE FIXED NUT DESIRABLE. SINCE THE SPLINE ON THE NUT SHANK MUST BROACH INTO THE WORK, INSTALLATIONS ARE USUALLY LIMITED TO USE IN THIN ALUMINUMOR SOFT STEEL SHEETS OR PLATES. THE FLOATING NUT COMPONENT ADDS ADVANTAGE TO THE USE OF NC4284 SINCE IT RELAXES THE USUAL REQUIREMENTS FOR CLOSEBOLT HOLE ALIGNMENTS IN MAKING ASSEMBLY STACK-UPS.SHANK LENGTH SELECTIONNC4284-1-XX PARTS ARE RECOMMENDED FOR INSTALLATIONS INVOLVING SHEET THICKNESSES UP TO APPROXIMATELY .050 INCH. PRACTICAL FLUSHNESS CAN BEACHIEVED IN THICKNESSES AS LOW AS .030 INCH.NC4284-2-XX PARTS ARE RECOMMENDED FOR USE IN SHEET THICKNESSES OF .050 MINIMUM.NC4284-3-82 & NC4284-3-02 PARTS ARE RECOMMENDED FOR USE IN SHEET THICKNESSES OF .080 MINIMUM.FOR OPTIMUM INSTALLATION IT IS RECOMMENDED THAT THE PROPER TOOLS BE USED, AND THAT THE MAXIMUM TABULATED CLINCHING PRESSURES NOT BE EXCEEDED.EXCEEDING THESE VALUES CAN, DEPENDING UPON THE MATERIAL INTO WHICH THE NUT IS INSTALLED, CAUSE DISTORTION OF THE WORK AND/OR THE NUT ITSELF.THE MOST SATISFACTORY INSTALLATIONS ARE OBTAINED WHEN THE NUT IS PRESSED INTO THE WORK UNTIL ITS SHOULDER RESTS AGAINST THE SURFACE OF THE WORK.THE SHANK SHOULD THEN BE FLARED.IT IS RECOMMENDED THAT THE ACTING SURFACE OF THE PUNCH FACE BE MAINTAINED. BOTH THE PUNCH AND THE DOLLY SHOULD BE REGULARLY INSPECTED ANDCLEANED OF ANY PLATING BUILD-UP IN ORDER TO ASSURE PROPER SEATING OF THE NUT.NOTES:999PART CODING:F 1 2 NC4284 - 2 - 021. THREAD SIZES –40 AND –62 ARE NOT AVAILABLE WITH THE –3 (.090) SHANK LENGTH AS OF PRINTING THIS CATALOG.CONSULT ESNA FOR AVAILABILITY.THREAD SIZENUT TYPEFINISHMATERIALSHANK LENGTHPOST PLATE TEATMENT - PER SAE AMS-QQ-P-416, TYPE II.PJ - 2550-29NC4284PAGE 1 OF 2ISSUED: 23 JUN 62 REVISED: 9 3 NOV 200375

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNAPART NUMBER12NC4284-X-4012NC4284-X-6212NC4284-X-8212NC4284-X-02INSTALLATION TOOLS MAXIMUM INSTALLATION HOLERECOMMENDEDDIAMETERSPUNCH DOLLYCLINCHINGPRESSURE (LB) MIN MAXCPFA6CDFB4CDFB61,500 .217 .219CPFA10CDFB8CDFB102,500 .268 .271PUNCHPUNCH A B C DPARTNUMBER +.000 +.000±.015 ±.015-.002 -.002CPFA6 .307 .200 .919 .213CPFA10 .419 .300 .954 .264MATERIAL: TOOL STEEL ROCKWELL “C” 60 (REF)FINISH: UNPLATEDDOLLYDOLLYPARTNUMBERA B C+.000 +.003±.015 ±.002 ±.015 ±1° ±.003 ±.015-.002 -.000CDFB4 .183 35° .209.299 .200 .299 .166CDFB6 .243 .287.791CDFB8 .269 21° .318.419 .300 .351 .200CDFB10 .288 -------.825DEFGLMATERIAL: TOOL STEEL ROCKWELL “C” 60 (REF)FINISH: UNPLATEDHANDLEMATERIAL: STEEL, SURFACE HARDENED.REFERENCE STANDARDS:FINISH: UNPLATEDHANDLE PARTNUMBERNUT - CLINCH, FLOATING, 350°FA±.015+.002-.000CHM1 .312 .201CHM2 .437 .301BPJ - 2550-2NC4284PAGE 2 OF 2ISSUED: 23 JUN 62 REVISED: 9 3 NOV 200376

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PART NUMBERSA B C D F L M NSTEELAPPROXAPPROX BRASS APPROX THREADSTAINLESSALUMINUMCADMIUMWEIGHTWEIGHT CADMIUM WEIGHTUNPLATEDANODIZED±.015 REF REF REF MAX ±.006 ±.002 REFPLATEDLB/100LB/100 PLATED LB/10022NC1-40 79NC1-40 .15 68NC1-40 .06 .063 .08022NC2-40 79NC2-40 .16 68NC2-40 .06 .085 .08022NC3-40 79NC3-40 .17 68NC3-40 .07 .1120-40UNJC-3B .141 .250 .275 .147 .183 .105 .189 .10522NC4-40 79NC4-40 .18 .135 .13522NC5-40 79NC5-40 .19 68NC5-40 .08 .165 .16522NC2-48 .16 .085 .080.1120-48UNJF-3B .141 .250 .275 .147 .183 .18922NC3-48 .17 .105 .10522NC1-62 79NC1-62 .28 68NC1-62 .12 .063 .08022NC2-62 79NC2-62 .30 68NC2-62 .12 .085 .08022NC3-62 79NC3-62 .32 68NC3-62 .13 .105 .105.1380-32UNJC-3B .188 .313 .344 .165 .216.22222NC4-62 79NC4-62 .34 68NC4-62 .13 .135 .13522NC5-62 79NC5-62 .36 .165 .16579NC6-62 .38 .195 .19522NC3-60 .32 .1380-40UNJF-3B .188 .313 .344 .165 .216 .105 .222 .10522NC1-82 79NC1-82 .57 68NC1-82 .22 .063 .08022NC2-82 79NC2-82 .59 68NC2-82 .23 .085 .08022NC3-82 79NC3-82 .61 68NC3-82 .24 92NC3-82 .65 .105 .105.1640-32UNJC-3B .250 .375 .413 .220 .267 .27522NC4-82 79NC4-82 .63 68NC4-82 .25 .135 .13522NC5-82 79NC5-82 .65 .165 .16522NC6-82 79NC6-82 .67 68NC6-82 .27 .195 .19522NC1-04 .52 .063 .08022NC2-04 79NC2-04 .54 68NC2-04 .21 .085 .08022NC3-04 79NC3-04 .56 .105 .105.1900-24UNJC-3B .250 .375 .413 .220 .267 .27522NC4-04 79NC4-04 .58 .135 .13522NC5-04 79NC5-04 .60 .165 .16522NC6-04 .62 .195 .19522NC1-02 79NC1-02 .52 .063 .08022NC2-02 79NC2-02 .54 68NC2-02 .21 92NC2-02 .59 .085 .08022NC3-02 79NC3-02 .56 .105 .105.1900-32UNJC-3B .250 .375 .413 .220 .267 .27522NC4-02 79NC4-02 .58 68NC4-02 .23 .135 .13522NC5-02 79NC5-02 .60 68NC5-02 .24 .165 .16522NC6-02 79NC6-02 .62 .195 .19522NC1-040 79NC1-040 .90 68NC1-040 .35 .063 .08022NC2-040 79NC2-040 .95 .085 .08022NC3-040 79NC3-040 1.00 .105 .105.2500-20UNJC-3B .313 .438 .488 .280 .351 .35922NC4-040 79NC4-040 1.05 68NC4-040 .41 .135 .13522NC5-040 79NC5-040 1.10 .165 .16522NC6-040 79NC6-040 1.15 .195 .19522NC3-048 1.00 68NC3-048 .39 .105 .10522NC4-048 79NC4-048 1.05 .135 .135.2800-28UNJF-38 .313 .438 .488 .280 .351 .35922NC5-048 1.10 68NC5-048 .43 .165 .16579NC6-048 1.15 .195 .19522NC1-058 79NC1-058 1.25 68NC1-058 .49 .063 .08079NC3-058 1.35 .3125-18UNJC-3B .344 .500 .557 .343 .407 .105 .416 .10522NC4-058 79NC4-058 1.40 .135 .13522NC4-054 1.40 .135 .13522NC5-054 1.45 .3125-24UNJF-3B .344 .500 .557 .343 .407 .165 .416 .16522NC6-054 1.50 .195 .195REFERENCE STANDARDS:NASM45938/8NUT - CLINCHPJ - 2390NCPAGE 1 OF 3ISSUED: 24 MAR 53 REVISED: 12 3 NOV 200377

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2MATERIAL:STEELALUMINUM ALLOY – 2017-T4 OR EQUIVALENTSTAINLESS STEEL – AISI 303BRASS – COMMERCIAL HALF HARDFINISH:12CADMIUM PLATE, AMS SAE-QQ-P-416, TYPE 1, CLASS 3(SEE SPECIAL NOTE IN PART CODING EXAMPLE AT RIGHT)ANODIZED, MIL-A-8625LOCKING INSERT: RED NYLON (350°F MAX PERFORMANCE)12THREADS: AS887912PART CODING:F 2 2 NC 3 - 02THREAD SIZESHANK LENGTHNUT TYPEFINISHMATERIAL12POST PLATE TEATMENT - PER SAE AMS-QQ-P-416, TYPE II.PERFORMANCE: NASM25027AS APPLICABLE12APPLICATION: CLINCH NUTS ARE PERMANENTLY SELF-RETAINED, SELF-LOCKING FASTENERS FOR INSTALLATION INALUMINUM OR SOFT SHEET STEEL ASSEMBLIES. THEY PROVIDE LOAD-BEARING THREADS IN THIN SHEET METAL AND OF-FER A HIGHLY RELIABLE METHOD OF BLIND FASTENING. ONLY FOUR SIMPLE STEPS, OUTLINED ON THIS PAGE, ARE RE-QUIRED TO INSURE TROUBLE FREE PRODUCTION AND SUPERIOR PRODUCT PERFORMANCE.STEP 1.SELECT THE PROPER NUT, MOUNTING HOLE DIAMETER, TOOLS AND FLARING PRESSURES.THREADSIZEINSTALLATION HOLEDIAMETERPUNCHPARTSTANDARD INSTALLATION DATADOLLYPARTMAX CLINCHING PRESSURE(POUNDS)NUMBER NUMBERMIN MAX STEEL NUT CRES NUT ALUM NUT BRASS NUTMINC'BOREDIAMETER (FORFLUSH.1120 .184 .186 CP3-4 CD3-4 1400 1900 1400 1000 .501.1380 .217 .219 CP6 CD6 1900 3000 1900 1800 .501.1640 .268 .271 CP8-10 CD8 2100 4000 2100 2100 .563.1900 .268 .271 CP8-10 CD10 2100 4000 2100 2100 .563.2500 .352 .355 CP416 CD416 4000 4300 4000 3300 .626.3125 .408 .412 CP516 CD516 4500 4500 4500 3900 .688NUT TYPESTANDARD SHANK LENGTHSSHANKLENGTH(REF)SHEET THICKNESS "A"MINMAXNC1 .063 .020 .031NC2 .085 .032 .053NC3 .105 .054 .073NC4 .135 .074 .103NC5 .165 .104 .133NC6 .195 .134 .163STEP 2. PREPARE THE HOLE CORRECTLY.INSTALLATION HOLES MAY BE DRILLED OR PUNCHED BY NORMAL PRODUCTION METHODS BUTMUST BE HELD TO THE TOLERANCES INDICATED IN TABLE ABOVE. CARE SHOULD BE TAKEN TOHAVE THE HOLE CLEAN, PERFECTLY ROUND (NOT OVAL) AND AT 90° TO THE SURFACE OF THEWORK. IT IS RECOMMENDED THAT THE HOLES BE PUNCHED RATHER THAN DRILLED FORGREATER ACCURACY.STEP 3. INSERT NUT SHANK COMPLETELY INTO THE HOLE.WHEN INSERTING THE NUT IN THE HOLE IT IS IMPORTANT THAT THE NUT BASE BE FULLY ANDSQUARELY SEATED AGAINST THE WORK FACE. ACCORDING TO THE CLINCH NUT SIZE, SELECTTHE CORRECT DOLLY FROM TABLE ABOVE. PLATE THE DOLLY ON THE CROWN OF THE NUT,FORCING THE NUT INTO THE SEATED POSITION. USE A LIGHT HAMMER BLOW OR SMALL POWERPRESS ON THE DOLLY TO SEAT THE NUT – DO NOT STRIKE OR PRESS DIRECTLY ON THE CROWNOF THE NUT.STEP 4. CLINCH OR SWAGE THE NUT SHANKTHIS FINAL STEP SECURELY LOCKS THE NUT IN THE HOLE AGAINST TWIST -OUT AND PUSH-OUTFORCES AND MAKES THE NUT AN INTEGRAL PART OF THE ASSEMBLY. PLACE THE DOLLYAGAINST THE HEAD OF THE NUT WITH THE PUNCH CENTERED ON THE EXTENDED SHANK OF THENUT. THE DOLLY ACTS AS A SUPPORT FOR THE NUT BODY AS THE PRESSURE EXERTED BY THEPUNCH FORCES THE EDGES OF THE SHANK OUTWARD. BEST RESULTS ARE OBTAINED BY EXERT-ING STEADY CONTROLLED PRESSURE TO THE LIMITS OUTLINED IN TABLE ABOVE.FOR COUNTERBORED INSTALLATIONS.IN ASSEMBLIES REQUIRING FLUSH MOUNTING SURFACES OR WHERE MATERIAL THICKNESS ISGREATER THAN THE .163 MAXIMUM STANDARD CLINCH NUT GRIP, THE ROLLED-OVER CLINCHSHANK MAY BE RECESSED INTO A COUNTERBORED HOLE. TABLE ON PAGE 2 OF 3 GIVES THEMINIMUM COUNTERBORE DIAMETERS ALLOWING ACCESS OF THE PUNCH TOOL TO PROPERLYROLL OVER THE SHANK.REFERENCE STANDARDS:NASM45938/8NUT - CLINCHPJ - 2390NCPAGE 2 OF 3ISSUED: 24 MAR 53 REVISED: 12 3 NOV 200378

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2MATERIAL:TOOL STEEL, 60 Rc REFFINISH:UNPLATEDCLINCH NUTTHREAD SIZEDOLLY PARTNUMBERABD E F G±2° ±.002+.002-.000±.002 REF DIA ±.002 ±.001.1120 CD3-4 25° .006 .245 .045 .173 .438 .141 .024.1380 CD6 25° .010 .310 .040 .222 .438 .169 .040.1640 CD8 23° 20' .011 .380 .070 .247 .500 .179 .055.1900 CD10 15° .008 .376 .070 .267 .500 .213 .048.2500 CD416 25° .010 .451 .080 .326 .563 .273 .040.3125 CD516 20° .012 .515 .075 .398 .625 .337 .045LRCLINCH NUTTHREAD SIZEREFERENCE STANDARDS:NASM45938/8PUNCH PARTNUMBERAB±2° ±.002C D E F±2° ±.002 ±.002 REF.1120 CP3-4 25° .008 30° .210 .040 .182 .438 .125 .344 .015.1380 CP6 25° .012 30° .258 .040 .210 .438 .136 .406 .030.1640 CP8-10 25° .014 30° .318 .038 .266 .500 .200 .453 .023.1900 CP8-10 25° .014 30° .318 .038 .266 .500 .200 .453 .023.2500 CP416 30° .012 .403 .043 .350 .563 .260 .563 .035.3125 CP516 25° .015 .460 .050 .406 .625 .319 .625 .032NUT - CLINCHG L M RDIA ±.002 ±.015 ±.001PJ - 2390NCPAGE 3 OF 3ISSUED: 24 MAR 53 REVISED: 12 3 NOV 200379

USE THE TABLES ON THE FOL-LOWING PAGE FOR CORRECTNUT SELECTION AND ASSEMBLYPROCEDUREIMPORTANT . . . How to installESNA ® self-locking clinch nutsClinch nuts are permanently self-retained, self-locking fastenersfor installation in aluminum or soft sheet steel assemblies.They provide load-bearing threads in thin sheetmetal and offer a highly reliable method of blind fastening.A major advantage of the ESNA clinch nut series is itsease of installation. Only three simple installation steps,outlined on this page, are required to insure trouble freeproduction and superior product performance.STEP 1 STEP 2PREPARE THE HOLE CORRECTLYInstallation holes may be drilled or punched by normal productionmethods but must be held to the tolerances indicatedin TABLE 1. Care should be taken to have the holeclean, perfectly round (not oval) and at 90° to the surface ofthe work. It is recommended that the holes be punchedrather that drilled for greater accuracy.INSERT NUT SHANKCOMPLETELY INTO THE HOLEWhen inserting the nut in the hole it is important that the nutbase be fully and squarely seated against the work face.According to the clinch nut size, select the correct dolly fromTABLE 3. Place the dolly on the crown of the nut, forcingthe nut into the seated position. Use a light hammer blow orsmall power press on the dolly to seat the nut – DO NOTstrike or press directly on the crown of the nut.STEP 3 STEP 4CLINCH OR SWAGE THE NUT SHANKThis final step securely locks the nut in the hole againsttwist-out and push-out forces and makes the nut an integralpart of the assembly. Place the dolly against the head of thenut with the punch centered on the extended shank of thenut. The dolly acts as a support for the nut body as thepressure exerted by the punch forces the edges of theshank outward. Best results are obtained by exerting steadycontrolled pressure to the limits outlined in TABLE 4.For Counterbored InstallationsIn assemblies requiring flush mounting surfaces or wherematerial thickness is greater than the .163 maximum standardclinch nut grip, the rolled-over clinch shank may berecessed into a counterbored hole. TABLE 5 gives the minimumcounterbore diameters allowing access of the punchtool to properly roll over the shank.80

USE THESE TABLES AS A “CHECK LIST”FOR CORRECT NUT SELECTION ANDASSEMBLY PROCEDURE.STANDARD HOLEDIAMETERSSTANDARD SHANKLENGTHSSTANDARD CLINCHTOOLSTHREADSIZEINSTALLATION HOLEMINMAXCLINCH NUTTYPESYMBOLSHANKLENGTH(REF)SHEET THICKNESS "A"MIN.MAX.CLINCH NUTTHREADSIZEPUNCH PARTNUMBER (SEENOTE 2)DOLLY PARTNUMBER (SEENOTE 2)4 .184 .1866 .217 .2198 .268 .27110 .268 .2711/4 .352 .3555/16 .408 .412TABLE 1NC1 .063 .020 .031NC2 .085 .032 .053NC3 .105 .054 .073NC4 .135 .074 .103NC5 .165 .104 .133NC6 .195 .134 .163TABLE 24 CP3-4 CD3-46 CP6 CD68 CP8-10 CD810 CP8-10 CD101/4 CP416 CD4165/16 CP516 CD516TABLE 3CLINCH NUTTHREADSIZESTANDARD CLINCHINGPRESSURESMAXIMUM CLINCHING PRESSURE(POUNDS)STEEL NUTALUMSTANDARDCOUNTERBORE DIATHREADSIZEMINIMUMCOUNTERBOREDIAMETERALLOY NUT BRASS NUT 4 .5014 1400 1400 10006 1900 1900 18008 2100 2100 210010 2100 2100 21001/4 4000 4000 33005/16 4500 4500 3900TABLE 46 .5018 .56310 .5631/4 .6265/16 .688TABLE 581

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ESNA PARTNUMBERTHREADA B D±.015 ±.015 MIN MAXFREFGRECOMMENDEDINSTALLATIONHOLE SIZEREF MIN MAXL±.015MINIMUMAXIALSTRENGTHPOUNDSAPPROX.WEIGHTLB/10022ND8-82 .125 .5722ND10-82 .156 .6222ND12-82 .188 .67.1640-32UNJC-3B .172 .438 .321 .325 .287 .370 .312 .316 1,72022ND14-82 .219 .7222ND16-82 .250 .7722ND20-82 .313 .8722ND8-02 .125 .5322ND10-02 .156 .5822ND12-02 .188 .6322ND14-02 .1900-32UNJF-3B .172 .438 .321 .325 .287 .370 .312 .316 .219 2,460 .6822ND16-02 .250 .7322ND18-02 .281 .7822ND20-02 .313 .8342ND8-048 .125 .7042ND10-048 .156 .8042ND12-048 .188 .9042ND14-048 .219 1.00.2500-28UNJF-3B .188 .563 .384 .388 .350 .438 .375 .379 3,75042ND16-048 .250 1.1042ND20-048 .313 1.3042ND24-048 .376 1.5042ND28-048 .438 1.7042ND8-054 .125 1.0042ND10-054 .156 1.1042ND12-054 .188 1.2042ND14-054 .3125-24UNJF-3B .234 .625 .446 .450 .412 .500 .437 .441 .219 6,500 1.3042ND16-054 .250 1.4042ND20-054 .313 1.6042ND24-054 .376 1.8042ND10-064 .156 1.3042ND12-064 .188 1.4042ND14-064 .219 1.5042ND16-064 .3750-24UNJF-3B .281 .688 .509 .513 .475 .570 .500 .504 .250 11,000 1.6042ND20-064 .313 1.8042ND24-064 .376 2.0042ND32-064 .500 2.4042ND28-070 .4375-20UNJF-3B .359 .750 .571 .575 .537 .660 .562 .566 .438 12,000 2.6042ND22-080 .344 3.90.5000-20UNJF-3B .375 .875 .696 .700 .662 .770 .687 .69112,00042ND28-080 .438 4.20REFERENCE STANDARDS:MS51866NUT - SPLINEPJ - 1294NDPAGE 1 OF 2ISSUED: 25 JAN 51 REVISED: 12 3 NOV 200382

611 Country Club Road · 1-800-331-6469FSCM - 019L2Pocahontas, Arkansas 72455 · FAX 1-870-892-8938PART CODING:F 2 2 NC 3 - 02THREAD SIZEMATERIAL: STEELFINISH: CADMIUM PLATE, AMS SAE-QQ-P-416, TYPE I, CLASS 3LOCKING INSERT: RED NYLON (350° MAX PERFORMANCE)THREADS: AS8879121212SHANK LENGTHNUT TYPEFINISHMATERIAL12POST PLATE TEATMENT - PER SAE AMS-QQ-P-416, TYPE II.CONCENTRICITY: SHANK O.D. CONCENTRIC WITH P.D. OF THREADS WITHIN .007 F.I.R.PERFORMANCE: TORQUE NASM25027, AXIAL TENSILE STRENGTH AS LISTED.12APPLICATION: TYPE “ND” SPLINE NUT IS A SELF WRENCHING FASTENER DESIGNED FOR USE IN EITHER BLIND MOUNTEDAPPLICATIONS OR IN APPLICATIONS WHERE MAINTENANCE CAN BE FACILITATED BY THE USE OF AN AT-TACHED NUT. TYPE “ND” SPLINE NUTS ARE DESIGNED PRIMARILY FOR INSTALLATION IN RELATIVELY SOFTMATERIALS, SUCH AS ALUMINUM AND MA GNESIUM ALLOYS, WHICH CAN BE EFFECTIVELY BROACHED BY THESPLINES OF THE NUT SHANK. ESNA SPLINE NUTS CAN ALSO BE INSTALLED IN CERTAIN TYPES OF STEEL,HOWEVER, IT IS SUGGESTED THAT SUCH APPLICATIONS BE SUBMITTED FOR ENGINEERING RECOMMENDA-TIONS.NOTES: 1. ESNA SPLINE NUTS ARE NOT NORMALLY AVAILABLE IN THE NUMBER 6 THREAD SIZE. ESNA TYPE “NC”CLINCH NUTS ARE BETTER ADAPTED FOR THE THIN SHEET METAL GENERALLY USED IN APPLICATIONSUTILIZING NUMBER 6 SCREWS.2. IF PARTIALLY THREADED BOLTS ARE USED THE ASSEMBLED DIMENSIONS SHOULD BE CAREFULLYCHECKED TO MAKE CERTAIN THAT THE BOLT WILL NOT “BOTTOM” IN THE THREA DS OF THE NUT SHANK.ESNA TYPE ND2398 SPLINE NUT IS RECOMMENDED AS A REPLACEMENT FOR TYPE “ND” IN APPLICATIONSIN WHICH “BOTTOMING” IS A POSSIBILITY. TYPE ND2398 IS A HEAT TREATED SPLINE NUT, THE SHANK OFWHICH IS COUNTERBORED FOR CLEARANCE. THE ND2398 REDUCED THREAD LENGTHS CONFORM TOTHE THREAD LENGTHS OF ESNA TYPE “E” AND “M” HEX NUTS, WHICH ARE APPROVED AS NASM21044.3. IT IS RECOMMENDED THAT AN ARBOR PRESS, OR EQUIVALENT, BE USED TO PRESS THE SPLINE NUTINTO THE MATING MEMBER. PRESSURE SHOULD NOT BE APPLIED TO THE CROWN OF THE NUT.4. SLIGHT DISTORTION OF THE SHANK MIGHT RESULT FROM INSERTION IN CERTAIN MATERIALS AND PRE-VENT ENTRY OF THE THREAD GO-GAGE. IT IS IMPORTANT TO NOT INSTALL “ND: SPLINE NUTS IN MATERI-ALS WHICH WILL DEFLECT THE SHANK INWARD TO A POINT WHICH WILL PREVENT ENTRY OF THE MA T-ING BOLT.PJ - 1294ISSUED: 25 JAN 51 REVISED: 12 3 NOV 2003REFERENCE STANDARDS:MS51866NUT - SPLINENDPAGE 2 OF 283

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2SECTION 3ENGINEERING DATADOCUMENTPAGENUMBERGAGING OF INTERNAL SCREW THREADS 85NYLON LOCKING INSERTS 87ANGULARITY OF THREAD AXIS 89TORQUE TENSION MANUAL 91MAINTAINING FASTENER TIGHTNESS 9284

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2GAGING OF INTERNAL SCREW-THREADSThe National Bureau of Standards Handbook H28 presents complete dimensional data upon which specifications for threaded products may be based.Compliance with these provisions will fulfill Government requirements including those listed in Spec MIL-S-7742 and Spec MIL-S-8879. Certain information concerninginternal threads as employed in self -locking nuts is of particular significance. The following paragraphs explain the content of H28 in relation to the manufactureand inspection of Elastic Stop Nuts.ADOPTION OF UNIFIED THREADS AND CONVERSION TO SPECIFICATION MIL-S-8879 THREADSFor standardization purposes, we manufacture much of our industrial product line to the MIL-S-8879 thread dimensions. Nuts so manufactured will functionproperly with either UNC, UNF, UNJC, or UNJF externally threaded fasteners. The MIL-S-8879 thread form only affects the minor diameter on internallythreaded parts and existing “GO” and “NOT-GO” pitch diameter thread gages can still be used.ESNA has standardized on Unified Class 3B threads in lieu of Classes 2 or 3 except in cases where special threads or those of a lower class are required.GAGE TYPESThe object of gaging is to secure interchangeability of mating parts without selection of fitting and to insure that the product conforms to specified dimensions.The applicable gage and thread dimensions are included in the attached table. ESNA employs three types of gages for the inspection of nuts in conformancewith Table 13 of Handbook H28 (1944). During manufacturing process inspection, variable data gages and working gages (constructed so that they are within thelimits of the final inspection gages) are used. During processing of parts, the more severe tolerance requirements of the working gage will serve as an advancewarning that tooling requires adjustment, thus preventing the further processing of parts which might ultimately fail to meet the requirements of the final gage. Accordingly,“not go” working gages have pitch diameters between the mean and minimum limits; while the final “not go” gages are between the mean and maximumlimits. Since working gages are of primary concern only to the threaded product manufacturer, these values are not included in the attached table.GAGE USEParagraph 2 of Section 3 on Gages, page 29 of Handbook H28 (1944) as amended on page 3 of the 1950 supplement relates to the utilization of “go”and “not go” gages. The essence of this informat ion is as follows. When measuring internal threads, using “go” and “not go” gages, entry of the “go” gage insuresthat the minimum pitch diameter has been achieved. Similarly the maximum pitch diameter has not been exceeded and the parts shall be acceptable if an approved“not go” gage does not enter. H28 defines “not go” gage performance to mean that on or before the third turn, a definite drag must be obtained, although the gagemay be further inserted provided the snug fit is maintained. This is equivalent to a finger tight condition and the gage may not be “hand wrenched” or forced. Variabledata gages give direct readings of pitch diameter as well as functional readings.ACCEPTABILITY OF PRODUCTAn examination of the tabulated nut and gage pitch diameter tolerances reveals that dimensional combinations are possible which will prevent the “go”gage from entering or permit the “not go” gage to enter the nut. If the maximum “go” gage pitch diameter is greater than the minimum nut pitch diameter, interferencewill result. Similarly, if the minimum “not go” gage pitch diameter is smaller than the maximum nut pitch diameter, gage entry is possible. To exclude the possibilityof such occurrence, ESNA uses final inspection gages with dimensions to the extremes of the tolerance range, i.e., “go” gages close to the lower and “not go”gages close to the upper limits of the gage maker’s tolerances. This practice conforms to the acceptability of product stipulation in the Federal Screw Thread StandardH28. It states that should a question arise between manufacturer and purchaser of threaded products with regard to their size, and the manufacturer produceslimit gages which do not measure outside the specified limits for threaded components and pass the parts in question, they shall be accepted as meeting the specif i-cation for size.GAGING REJECTIONSWhen parts are rejected for thread dimensional reasons, and ESNA subsequently finds the nuts to gage satisfactorily, the purchaser may maintain thathis gage works on one lit of parts and consequently should be accurate for others as well. This contention is not necessarily correct since different lots of the samenut type may have somewhat different prevailing thread dimensions. The dimensions of gages are controlled to four decimal places or ten thousandths (.0001). Anynew gage will have dimensions within the gage maker’s tolerances. ESNA, however, selects gages to the extremes of the tolerance range for final inspection purposes.As previously pointed out the purchaser’s “go” gage, for example, may be to a diameter near the middle of the gage tolerance range of .2856 for the 5/16thread size. The first lot of nuts, by circumstance, may have a thread pitch diameter near the maximum of the nut tolerance range, or .2876. The purchaser’s “go”gage would enter satisfactorily. However, should the second lot of nuts have been near the minimum of the nut tolerance of .2855, the pieces, although dimensionallysatisfactory, would not accept the purchaser’s “go” gage which is larger in both cases. In both cases the ESNA final inspection “go” gage, which could be at thelower limit of .2854, would have entered satisfactorily since it is smaller than the purchaser’s “go” gage. Under these conditions the rejection would not be valid. Theuse of a minimum “go” gage and a maximum “not go” gage is recommended to simulate ESNA gaging procedures for a re-examination before parts are rejected.BEARING SURFACE SQUARENESSThe last paragraph of Section 4 on page 187 of H28 (1944) states that:“The bearing surface shall be at right angles to the axis of the threaded hole within a tolerance of 2° for 5/8-in. nutsor smaller, and 1° for nuts larger than 5/8-in.”ESNA fulfills these requirements. For further details see ESNA Specification 405.ISSUED: 10 SEPT 53 REVISED: F 26 MAY 87ENGINEERINGDATAGAGING OF INTERNAL SCREW -THREADSPAGE4885

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2THREAD SIZE ANDCLASSESNADASHNUMBERPITCH DIAMETERMAX.MIN.FINEMINOR DIAMETERMAX..0600-80UNF-3B 00 .0536 .0519 .0514 .0465 .0536 .0534 .0521 .0519.0730-72UNF-3B 12 .0659 .0640 .0635 .0580 .0659 .0657 .0642 .0640.0860-64UNJF-3B 24 .0779 .0759 .0749 .0708 .0779 .0777 .0761 .0759.0990-56UNJF-3B 36 .0895 .0874 .0862 .0816 .0895 .0893 .0876 .0874.1120-48UNJF-3B 48 .1008 .0985 .0971 .0917 .1008 .1006 .0987 .0985.1250-44UNJF-3B 54 .1126 .1102 .1088 .1029 .1126 .1124 .1104 .1102.1380-40UNJF-3B 60 .1243 .1218 .1202 .1137 .1243 .1241 .1220 .1218.1640-36UNJF-3B 86 .1487 .1460 .1442 .1370 .1487 .1485 .1462 .1460.1900-32UNJF-3B 02 OR 3 .1726 .1697 .1675 .1596 .1726 .1723 .1700 .1697.2160-28UNJF-3B 128 .1959 .1928 .1896 .1812 .1959 .1956 .1931 .1928.2500-28UNJF-3B 048 OR 4 .2300 .2268 .2229 .2152 .2300 .2297 .2271 .2268.3125-24UNJF-3B 054 OR 5 .2890 .2854 .2799 .2719 .2890 .2887 .2857 .2854.3750-24UNJF-3B 064 OR 6 .3516 .3479 .3418 .3344 .3516 .3513 .3482 .3479.4375-20UNJF-3B 070 OR 7 .4091 .4050 .3970 .3888 .4091 .4088 .4053 .4050.5000-20UNJF-3B 080 OR 8 .4717 .4675 .4591 .4513 .4717 .4714 .4678 .4675.5625-18UNJF-3B 098 OR 9 .5308 .5264 .5166 .5084 .5308 .5305 .5267 .5264.6250-18UNJF-3B 108 OR 10 .5934 .5889 .5788 .5709 .5934 .5931 .5892 .5889.7500-16UNJF-3B 126 OR 12 .7143 .7094 .6977 .6892 .7143 .7140 .7097 .7094.8750-14UNJF-3B 144 OR 14 .8339 .8286 .8152 .8055 .8339 .8336 .8289 .82861.0000-14UNJS-3B 164 .9590 .9536 .9402 .9305 .9590 .9587 .9539 .95361.0000-12UNJF-3B 162 OR 16 .9516 .9459 .9293 .9189 .9516 .9513 .9462 .94591.1250-12UNJF-3B 182 OR 18 1.0768 1.0709 1.0539 1.0439 1.0768 1.0765 1.0712 1.07091.2500-12UNJF-3B 202 OR 20 1.2019 1.1959 1.1789 1.1689 1.2019 1.2016 1.1962 1.19591.3750-12UNJF-3B 222 OR 22 1.3270 1.3209 1.3039 1.2939 1.3270 1.3267 1.3212 1.32091.5000-12UNJF-3B 242 OR 24 1.4522 1.4459 1.4289 1.4189 1.4522 1.4519 1.4462 1.4459MIN.ALLOWABLE PITCH DIAMETER LIMITS FORGAGESNOT GO THREADGAGEMAX.MIN.GO THREAD GAGEMAX.MIN.COARSE.0730-64UNC-3B 14 .0648 .0629 .0623 .0561 .0648 .0646 .0631 .0629.0860-56UNJC-3B 26 .0765 .0744 .0732 .0686 .0765 .0763 .0746 .0744.0990-48UNJC-3B 38 .0877 .0855 .0841 .0787 .0877 .0875 .0857 .0855.1120-40UNJC-3B 40 .0982 .0958 .0942 .0877 .0982 .0980 .0960 .0958.1250-40UNJC-3B 50 .1113 .1088 .1072 .1007 .1113 .1111 .1090 .1088.1380-32UNJC-3B 62 .1204 .1177 .1157 .1076 .1204 .1201 .1180 .1177.1640-32UNJC-3B 82 .1465 .1437 .1417 .1336 .1465 .1462 .1440 .1437.1900-24UNJC-3B 04 .1661 .1629 .1600 .1494 .1661 .1658 .1632 .1629.2160-24UNJC-3B 124 .1922 .1889 .1852 .1754 .1922 .1919 .1892 .1889.2500-20UNJC-3B 040 .2211 .2175 .2121 .2013 .2211 .2208 .2178 .2175.3125-18UNJC-3B 058 .2803 .2764 .2690 .2584 .2803 .2800 .2767 .2764.3750-16UNJC-3B 066 .3387 .3344 .3251 .3142 .3387 .3384 .3347 .3344.4375-14UNJC-3B 074 .3957 .3911 .3795 .3680 .3957 .3954 .3914 .3911.5000-13UNJC-3B 083 .4548 .4500 .4368 .4251 .4548 .4545 .4503 .4500.5625-12UNJC-3B 092 .5135 .5084 .4914 .4814 .5135 .5132 .5087 .5084.6250-11UNJC-3B 101 .5714 .5660 .5474 .5365 .5714 .5711 .5663 .5660.7500-10UNJC-3B 120 .6907 .6850 .6646 .6526 .6907 .6904 .6853 .6850.8750-9UNJC-3B 149 .8089 .8028 .7801 .7668 .8089 .8086 .8031 .80281.000-8UNJC-3B 168 .9254 .9188 .8933 .8783 .9254 .9250 .9192 .91881.1250-7UNJC-3B 187 1.0393 1.0322 1.0030 .9859 1.0393 1.0389 1.0326 1.03221.2500-7UNJC-3B 207 1.1644 1.1572 1.1280 1.1109 1.1644 1.1640 1.1576 1.15721.3750-6UNJC-3B 226 1.2745 1.2667 1.2327 1.2127 1.2745 1.2741 1.2671 1.26671.500-6UNJC-3B 246 1.3996 1.3917 1.3577 1.3377 1.3996 1.3992 1.3921 1.39171.7500-5UNJC-3B 285 1.6288 1.6201 1.5792 1.5552 1.6288 1.6283 1.6206 1.62012.0000-4.5UNJC-3B 324 1.8650 1.8557 1.8102 1.7835 1.8650 1.8645 1.8562 1.85572.2500-4.5UNJC-3B 364 2.1152 2.1057 2.0602 2.0335 2.1152 2.1147 2.1062 2.1057ISSUED: 10 SEPT 53 REVISED: F 26 MAY 87ENGINEERINGDATAGAGING OF INTERNAL SCREW -THREADSPAGE48.186

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2NYLON LOCKING INSERTSThe types of nylon which ESNA employs in the locking elements of itsinsert nuts are “Zytel” 101 and “Zytel” 103 made by DuP ont and supplied as amolding powder. Both types in final form have a red color and a shiny appearance.Both “Zytel” 101 and 103 fulfill the requirements of ASTM D4066. Theyhave substantially the same properties which are listed below, except that whenused as a locking insert, “Zytel” 101 is fully effective to 250°F and “Zytel” 103to 350°F. In many applications these temperature limitations have been exceededand sufficient locking torque remained to resist loosening in operation.Specific Gravity 1.14Tensile StrengthElongation-70°F15,700 psi73°F 10,500psi170°F 7,600psi-70°F 1.673°F 90%170°F 320%2. Thermal Propertiesa. Nylon is one of the most resistant of the thermoplastic resins. It will notsoften gradually as the temperature rises, but has a sharp melting point belowwhich it remains fairly rigid. Thus, nylon inserts maintain their locking effectivenessthroughout the applicable temperature range.b. The tensile strength of nylon increases with a decrease in temperature. Withexcellent low temperature flexibility nylon insert locking performance is notaffected by sub-zero conditions.3. Resistance to ChemicalsOrganic AcidsNylon is unaffected by common solvents, alkalies, dilute mineral acids,and most organic acids. It is impervious to oils and greases, and in turnwill have no contaminating affect on such lubricants. Nylon is not subjectto fungus attack and will withstand continuous salt or fresh water immersionand repeated steam sterilization. The following is a tabulation ofsome of the chemicals and solvents to which nylon is inert or highly resistant:CausticsConc. Citric Acid10% Sodium Carbonate10% Latic Acid 12% Sodium HydroxideOleic Acid0.5% Ammonium HydroxideAcetic AcidSoaps and DetergentsModulus of Elasticity 73°F 400,000 psiFlexural Strength 73°F 13,800 psiStiffness 73°F 200,000 psiImpact Strength (Izod) -70°F 0.42 ft-lbRockwell Hardness77°F 0.94 ft-lb170°F 0.97 ft-lbR118Flow Temperature 480°FHeat Distortion Temperature for 264 psi 150°FHeat Distortion Temperature for 66 psi 360°FCoefficient of Expansion; linear per deg fahr 5.5 x 10 -5Thermal Conductivity BTU/hr/sq ft/°F/in 1.7Dielectric Strength, short time, volt/mil.385 (0.125 in.)Volume Resistivity, ohm. Cm 4.5 x 10 13Water Absorption 1.50%FlammabilityPHYSICAL CHARACTERISTICSSelf-extinguishingNylon locking inserts exhibit the following characteristics, which assureoutstanding performance of the self-locking nuts in which they are installed.1. Mechanical Strengtha. Nylon exhibits relatively high hardness, tensile, compressive, andimpact strength. Stiffness and rigidity are high also.b. The high tensile and tear strength of nylon, in conjunction with itscomparatively low frictional properties, produce excellent abrasionresistance.OilsMineral OilsLubricating OilsHydrogenated Vegetable OilsFurfuralVarnish OilPeanut OilCastor OilCorn OilSoy Bean OilFish OilOrganic Salt SolutionsPotassium CyanideSodium CyanideSodium AcetateLead AcetateMineral Salt SolutionsSodium SulphiteLithium SulphateFerric ChlorideSat. Sodium ChlorideFerric ArsenateSodium FluorideSodium ChromateSodium ArsenateSodium StannateSodium TungstateThiosulphatesSolvents (Aromatic)BensolToluolXylolChlorobenzolBenzaldehydeNitrobenzolISSUED: 31 JAN 56 REVISED: F 26 MAY 87ENGINEERINGDATANYLON LOCKING INSERTSPAGE6287

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2AcetoneEthyl AlcoholButyl AlcoholMineral SpiritsMethyl Ethyl KetonePropaneHeptaneIsopropyl AlcoholButyl AcetateAnalineEthyl Propionate4. Elastic RecoveryNylon has the unique property of recovery after deformation. Asan insert material, it will tend to return to its original shape after an impressionhas been made by the mating bolt thread. A definite increase inlocking torque can be noted when the nut is allowed to remain locked onthe bolt, even after numerous installation cycles. In any application theultimate number of re-use cycles which can be accomplished will dependon factors such as bolt thread roughness, the minimum breakaway torqueacceptable, and other service conditions. Nylon insert equipped nuts havefulfilled performance requirements even after several hundred successiveapplications.5. DurabilitySolvents (Aliphatic)CyclohexanolCarbon TetrachlorideCarbon Bi-sulphideChloroformTurpentineGasolineKeroseneTrichlorethyleneAldehydesFreonsGlycolsNylon became available as a molding powder in 1944, at whichtime ESNA realized the potentiality of the material and utilized it as theinsert of self-locking fasteners.Aging tests involving outdoor atmospheric exposure have beenperformed for extended periods with entirely satisfactory results. Partsassembled in 1944 are still in excellent condition and functionally sound.Based on data developed to date, nylon inserts should performsatisfactorily as a locking element for at least forty (40) years providedthat the conditions to which the parts are subjected are consistent with theproperties of the material as outlined in the preceding paragraphs.LOCKING EFFECTIVENESSThe basic function of the locking device in a self-locking nut is toresist loosening when the bolted joint is subjected to impact and vibratoryloads in service. Self-locking nuts develop “torque”, a measure of grippingaction, when installed on the mating bolt and this is often the solefactor considered in evaluating performance. Exhausting analyses byESNA utilizing test equipment and methods which reproduced actualoperating conditions demonstrated that other factors must be accountedfor in appraising locking effectiveness. Of concern are the mechanicalmeans by which the locking device creates torque; the flexibility of thelocking element in maintaining compatibility with the normal range ofbolt dimensional and quality variations; the capability of providing renewedlocking action after removal and reinstallation on the same orother bolts; and others as well.Some locking devices that depend on areas in high pressure metal tometal contact with the mating bolt will develop excessive initial torquedue to interference. They may rapidly lose their effectiveness duringvibration or upon reinstallation as the contact points yield or are wornaway.The nylon locking element in ESNA’s insert type fasteners is designed to engagethe thread of the mating bolt so that the nylon will be compressed between adjacentflanks and exert sufficient force to resist loosening. When contact is madebetween the nut insert and the mating bolt, the nylon flows into the void betweenthread flanks until uniform pressure is exerted against these surfaces as well asagainst the thread crests. This pressure effectively resists any induced tendency ofthe nut to rotate while at the same time nylon’s physical characteristics provide avibration damping action.ESNA nylon equipped parts have demonstrated superior resistance to looseningover all other types of self-locking nuts and locking devices. Upon request,ESNA’s Engineering Report ER115-1745 which outlines relative test results, willbe furnished; ER272-2177 describing an improved vibration test for thread lockingdevices is also available.APPLICATION ADVANTAGESThe excellent re-usability of Elastic Stop Nuts, resulting from the elastic recoveryand abrasion resistance of the nylon inserts, makes them ideally suited for suchapplications as the following:1. The mating screw is used repeatedly for making adjustments.2. Maintenance requirements result in frequent removal of the mating screw.Also, where fixed type fasteners, such as clinch and anchor nuts, must retaintheir locking effectiveness during the life of the equipment.3. When adequate locking action must persist after unusually lengthy travel ofthe nut on bolts which vary considerably in class, finish or other threadirregularities.4. In large thread sizes (3/4” - 4”) or very thin nut types where metallic lockingdevices are not feasible or are prone to develop excessive torques and to gallor damage the mating bolt threads.5. For fine and extra fine thread engagements where the locking torque and resistanceto galling of metallic locking elements are more difficult to control.6. For electronic units where the flaking of bolt plating must be held to a minimum.7. The fastening combination is subjected to extreme vibration or impact loading.8. Where consistent locking torque values between nuts in the same lot areneeded to provide uniform tightness or preload in the mating bolts.9. Materials are required such as brass or soft aluminum which do not lendthemselves to the formation of reliable locking devices.The resilient nature of nylon and its physical characteristics make insertequipped parts highly satisfactory for the following applications:1. Where the nut may be immersed continuously or intermittently in hot oils orother liquids.2. When resistance to fungus growth is necessary as on electronic equipmentintended for use in the tropics.3. Where sealing between the nut and bolt threads is required to limit fluidleakage or prevent thread corrosion with incident difficulty in disassembly.ISSUED: 31 JAN 56 REVISED: F 26 MAY 87ENGINEERINGDATANYLON LOCKING INSERTSPAGE62.188

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2ANGULARITY OF THREAD AXIS1. SCOPE AND CLASSIFICATION1.1 SCOPE - This specification relates to the classification and measurement of the angularity of the seating surface of the nutwith respect to the axis of the pitch diameter of the threads. It is to be applied to parts manufactured by the ElasticStop Nut Corporation of America when specified on the applicable standard drawing.1.2 CLASSIFICATION - ESNA thread squareness requirements will be classified into two groups, as follows:GROUP 1 - Standard squareness.GROUP II - Special squareness, supplied only when specifically called out on the ESNA drawing.2. REQUIREMENTS2.1 The seating surface of the nut must be square with the axis of the pitch diameter of the nut thread within the limits specified inTable 1.2.2 All nuts are to be measured for angularity of thread axis by means of a table squareness gage consisting of a table and threadedmandrel.2.2.1 TABLE - The table of the gage is made as shown in Figure 1.TABLE 1MAXIMUM LIMIT OF ANGULARITY OF THREAD AXISGROUP ITHREADMAXSIZE DECIMAL PERMISSIBLE DECIMALANGLEGROUP IIMAXPERMISSIBLEANGLE1 THRU 5 .004 0° 55'6 .005 0° 55'8 .006 1° 00' .005 0° 50'10 .006 0° 55' .005 0° 46'1/4 .007 0° 55' .005 0° 39'5/16 .007 0° 48' .005 0° 34'3/8 .008 0° 49' .005 0° 31'7/16 .008 0° 42' .005 0° 28'1/2 .009 0° 41' .006 0° 28'9/16 .010 0° 39'5/8 .010 0° 37'3/4 .010 0° 32'7/8 .011 0° 31'1 .012 0° 29'1 1/8 .013 0° 28'1 1/4 .014 0° 27'13/8 .015 0° 26'1 1/2 .016 0° 25'13/4 .018 0° 22'2 .020 0° 22'NOTE: THESE LIMITS APPLY TO THE BOLT SIZE LISTED,REGARDLESS OF THE PITCH OF THE THREADS.2.2.2 MANDREL - The threaded mandrel of the gage is made in accordance with the pitch diameters and major diameters listedin Tables III and IV.2.2.2.1 SQUARENESS OF MANDREL AND TABLE - The method of mounting the mandrel in the table is optional. The mandrelis mounted in the center of the measuring surface within .002 of the true center. When mounted, the center of the pitch diameter ofthe threads must be at 90° to the measuring surface of the table within a tolerance of 10% of the limits specified in Table I or 0° 4’whichever is the smaller.2.2.2.2 LENGTH OF MANDREL - The mandrel must not contact the locking element of the nut when the nut is inspected. Thelength of thread on the mandrel shall not be shorter than 75% of the effective threads in the nut. This minimum need not be heldwhen it exceeds the thread length of a standard “GO” gage.2.2.2.3 MANDREL MOUNTING - The mandrel is mounted so that the first full thread above the measuring surface is lessthan .062 or the pitch of one thread, whichever is the smaller, from the measuring surface.ISSUED: 5 NOV 51 REVISED: 8 26 MAY 87ESNASPECIFICATIONANGULARITY OF THREAD AXIS405PAGE 1 OF 289

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2TABLE IIDIAMETER OF MEASURING SURFACETHREADSIZE1234568101/45/163/87/161/29/165/83/47/811 1/81 1/41 3/81 1/21 3/42DIMENSION±.005ADIA..250.250.250.250.250.312.344.375.438.500.563.625.750.875.9381.0631.2501.4381.6251.8132.0002.1882.7503.125TABLE IIIMANDREL DIAMETERS (FINE THREAD)THREAD SIZEMAJOR DIAMETER PITCH DIAMETERMIN. MAX. MIN. MAX.1-72 UNF-3B2-64UNF-3B3-56UNF-3B4-48UNF-3B5-44UNF-3B6-40UNF-3B8-36UNF-3B10-32UNF-3B1/4-28UNF-3B5/16-24UNF-3B3/8-24UNF-3B7/16-20UNF-3B1/2-20UNF-3B9/16-18UNF-3B5/8-18UNF-3B3/4-16UNF-3B7/8-14UNF-3B1-14UNS-3B1 1/8-12UNF-3B1 1/4-12UNF-3B1 3/8-12UNF-3B1 1/2-12UNF-3B.0730 - .0733.0860 - .0864.0990 - .0994.1120 - .1124.1250 - .1254.1380 - .1384.1640 - .1644.1900 - .1905.2500 - .2505.3125 - .3130.3750 - .3755.4375 - .4380.5000 - .5005.5625 - .5630.6250 - .6255.7500 - .7506.8750 - .87561.0000 - 1.00061.1250 - 1.12561.2500 - 1.25061.3750 - 1.37561.5000 - 1.5006.0640 - .0642.0759 - .0761.0874 - .0876.0985 - .0987.1102-.1104.1218 - .1220.1460 - .1462.1697 - .1700.2268 - .2271.2854 - .2857.3479 - .3482.4050 - .4053.4675 - .4678.5264 - .5267.5889 - .5892.7094 - .7097.8286 - .8289.9536 - .95391.0709 - 1.07121.1959 - 1.19621.3209 - 1.32121.4559 - 1.4462TABLE IVMANDREL DIAMETERS (COARSE THREAD)THREAD SIZEMAJOR DIAMETER PITCH DIAMETERMIN. MAX. MIN. MAX.1-64UNC-3B .0730 - .0734 .0629 - .06312-56UNC-3B .0860 - .0864 .0744 - .07463-48UNC-3B .0990 - .0994 .0855 - .08574-40UNC-3B .1120 - .1124 .0958 - .09605-40UNC-3B .1250 - .1254 .1088 - .10906-32UNC-3B .1380 - .1385 .1177 - .11808-32UNC-3B .1640 - .1645 .1437 - .144010-24UNC-3B .1900 - .1905 .1629 - .16321/4-20UNC-3B .2500 - .2505 .2175 - .21785/16-18UNC-3B .3125 - .3130 .2764 - .27673/8-16UNC-3B .3750 - .3756 .3344 - .33477/16-14UNC-3B .4375 - .4381 .3911 - .39141/2-13UNC-3B .5000 - .5006 .4500 - .45039/16-12UNC-3B .5625 - .5631 .5084 - .50875/8-11UNC-3B .6250 - .6256 .5660 - .56633/4-10UNC-3B .7500 - .7506 .6850 - .68537/8-9UNC-3B .8750 - .8757 .8028 - .80311-8UNC-3B 1.0000 - 1.0007 .9188 - .91921 1/8-7UNC-3B 1.1250 - 1.1257 1.0322 - 1.03261 1/4-7UNC-3B 1.2500 - 1.2507 1.1572 - 1.15761 3/8-6UNC-3B 1.3750 - 1.3758 1.2667 - 1.26711 1/2-6UNC-3B 1.5000 - 1.5008 1.3917 - 1.39211 3/4-5UNC-3B 1.7500 - 1.7508 1.6201 - 1.62082-4 1/2UNC-3B 2.0000 - 2.0008 1.8557 - 1.85623. METHOD OF MEASUREMENT3.1 GAGING - Prior to the measurement for squareness of thread, allinspection samples are to be measured for proper thread fit by meansof the appropriate thread gages.3.2 INSTALLATION - The nut is installed on the threaded mandreluntil the seating surface of the nut makes contact with the measuringsurface of the table, as shown in Figure 2. The nut is tightened fingertightonly.3.3 MEASUREMENT - After installation, the assembly is examined forangularity of thread axis. The maximum permissible space betweenthe seating surface of the nut and the measuring surface of the gageshall not exceed the limit listed in Table I.4. NOTES4.1 The specifications applicable to self-locking nuts which have requirementsfor angularity of thread axis with respect to the seat of thenut, generally referred to as “Seat Squareness”, are:ANA SPEC AN-N-5ANA SPEC AN-N-10HANDBOOK H28NASM250274.2 These requirements are specified in degrees and for comparativepurposes they have been converted to inches as measured at dimension“A” (FIG 1) and tabulated together with ESNA Group I requirements.ESNA Group I requirements are applicable to airframe andcommercial design.4.3 ESNA angularity tolerances are maintained by close processcontrol, with regular production facilities. Inspection is based on asampling basis of 2% average quality level in accordance with MIL-STD-105.4.4 For nuts that are deep countersunk, where the countersink diameterexceeds the dimension “A” given in Table II, the measuringtable diameter and the permissible maximum decimal limit of angularitymay be increased provided the maximum permissible angle is notexceeded (See Table I).THREAD SIZEESNASTANDARDAN-N-5AN-N-10NASM25027GROUP I HANDBOOKINCHES INCHES INCHES1 THRU 5 .004 .008 .0056 .005 .010 .0068 .006 .012 .00610 .006 .013 .0061/4 .007 .015 .0075/16 .007 .017 .0073/8 .008 .020 .0087/16 .008 .022 .0081/2 .009 .026 .0099/16 .010 .030 .0105/8 .010 .033 .0113/4 .010 .019 .0127/8 .011 .022 .0131 .012 .025 .0151 1/8 .013 .028 .0161 1/4 .014 .032 .0181 3/8 .015 .0351 1/2 .016 .0381 3/4 .018 .0482 .020 .054ISSUED: 5 NOV 51 REVISED: 8 26 MAY 87ESNASPECIFICATIONANGULARITY OF THREAD AXIS405PAGE 2 OF 290

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2TORQUE-TENSIONMANUALNo. 8804The information offered in ESNA ® ’s TorqueTension Manual will help you obtain full performancevalues from Elastic Stop nut hexfasteners by installing them correctly.These recommended values have beenderived from thousands of torque/tensiontests run in our laboratories. They are intentionallyconservative averages deliberatelyselected to avoid the possibility of overstressingthe nut or bolt. It is quite possible,depending on a particular nut/bolt combination,that higher values may be used afterspecific testing proves it to be a reliablecombination.Suggested Torque Values as a Guideto Reliable Fastening Practices.CLICK HERE TO VIEW THE TORQUE-TENSION MANUAL611 Country Club RoadPocahontas, Arkansas 724551-(800)-331-6469 FAX: 1-(870)-892-8938E-mail: fastener@maclean-fogg.com91

611 Country Club Road · 1-800-331-6469Pocahontas, Arkansas 72455 · FAX 1-870-892-8938FSCM - 019L2MAINTAINING TIGHTNESS OF THREADEDFASTENERSMANUALNo. 8805We believe that this HOW and WHY of fastenerTechnology is a “must” for designers and engineersconcerned with fastening systems, long term reliability,product warranties and related quality assurancefactors.CLICK HERE TO VIEW THEMAINTAINING FASTENERTIGHTNESS MANUAL“Maintaining Tightness of Threaded Fasteners”is available in this catalog. This bulletin is anexpansion of ER 272-2177 on how and whythreaded fasteners loosen.The headings of the main sections of the reportwill give you a fair idea of its content.They are:⇒ What the designer wants of a threadedfastener system.⇒ Why do threaded fasteners loosen?⇒ Fasteners first loosen WITHOUT TURN-ING!⇒ Vibration testing⇒ Mechanical impacts set up resonance.⇒ ENERGY ABSORPTION IS THE KEYFACTOR.⇒ NYLON – most practical and effective energyabsorber.⇒ SUMMARY…A new theory of fastenerloosening.The third section of this bulletin deals with averified but relatively unrecognized fact. Evenunder static conditions a newly tightened nutand bolt lose some amount of prestress duringthe first few hours. Clearer understanding isgiven to another relatively unrecognized detail:a fastener subjected to intense vibration alwaysloosens before the nut actually rotateson the bolt. And for the first time that we knowof – the real significance of damping in threadinterface areas is spotlighted.611 Country Club RoadPocahontas, Arkansas 724551-(800)-331-6469 FAX: 1-(870)-892-8938E-mail: fastener@maclean-fogg.com92

ThischartwillhelpyouavoidfastenerfailuresTightened fasteners loosen for a variety of reasons –shock , vibration, inadequate installation torque, wearbetween parts, bolt stretch and the ever-present humanerror.The Elastic Stop ® nut with its integral red nylonlockingcollar, has proven in both laboratory and extensivefield tests, to be the highest standard of locknutperformance. The ESNA ® red nylon collar cantake extreme vibration and shock loads, remaininglocked in place under the severest conditions.With ESNA ® ’s relative vibration performance at 100(see chart) the vibration resistance of alternative lockingdevices can be clearly evaluated.This chart, the result of thousands ofvibration tests under controlled laboratoryconditions helps you select thenut locking device that will meet yourrequirements. When cost is a factor,consider the expense of stockingand handling of secondary lockingelements (lockwashers, lockwiresand cotter pins) and human error.Elastic Stop ® nuts clearly becomethe most efficient choice.MACLEAN-ESNA611 Country Club RoadPocahontas, Arkansas 724551-(800)-331-6469 FAX: 1-(870)-892-8938E-mail: fastener@maclean-fogg.com93

94611 Country Club RoadPocahontas, Arkansas 724551(800)331-6469 FAX: 1(501)892-8938e-mail: fastener@maclean-fogg.com