MAINTAINABILITY DESIGN TECHNIQUES METRIC - AcqNotes.com

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Downloaded from http://www.everyspec.com on 2011-10-29T14:56:01.DOD-HDBK-791(AM)3-7 STANDARDIZATION AND INTER- the design of an item. If an answer is "no" for any questionCHANGEABILITY CHECKLISTS on the checklists, the design should be restudied to determinewhether correction is required.Tables 3-1 and 3-2 checklists for standardization andinterchangeability, respectively—are for use in evaluating1.2.3.4.5.6.7.8.9.TABLE 3-1. STANDARDIZATION CHECKLISTHave all sources of standardization information been searched for common items, materials, and practices?Has each requirement for a tool or item of ground support equipment (GSE) been analyzed to determine whether theneed can be eliminated or the tool made common with those already used?Do designs and practices make use of the SI of measures where required?Have special manufacturing techniques been avoided or minimized?Are materials, processes. and components covered by Military Specifications’! Is a QPL available?Can standard circuits be used that will also be compatible with standardized test equipment?Are circuit types kept to a minimum?Are identical parts used wherever possible in similar equipment or in a series of a given type, such as using the samepiston and cylinder for a series of internal combustion engines?Are parts, fasteners, connectors, lines, cables, etc., standardized throughout the system, particularly from unit to unitwithin the system?1.2.3.4.5.6.7.8.9.10.11.TABLE 3-2. INTERCHANGEABILITY CHECKLISTDoes functional interchangeability exist where physical interchangeability is possible?Does complete interchangeability exist wherever practical?Is sufficient information provided on identification plates and within technical manuals to enable the user to decidewhether two similar parts are interchangeable?Are differences in size, shape, and mounting of components encouraged to eliminate the suggestion that parts may befunctionally interchangeable?Is complete interchangeability provided for all items intended to be identical, interchangeable, or designed to servethe same function in different applications?Do mounting holes and brackets accommodate units of different makes, such as engines of the same type andhorsepower, built by different manufacturers?Are cable harnesses designed so that they can be fabricated in a factory and installed as a unit?Is complete electrical and mechanical interchangeability provided on all like removable components?Are bolts, screws, and other features the same size for all covers and cases on a given piece of equipment?Is interchangeability provided for components having a high mortality?Where complete interchangeability is not practical, are parts of units designed for functional interchangeability, andare adapters provided to allow physical interchangeability, wherever practical?3-12
Downloaded from http://www.everyspec.com on 2011-10-29T14:56:01.DOD-HDBK-791(AM)REFERENCES1.2.3.4.5.6.7.8.9.10.11.12.DoD Directive No. 4120.3, Defense Standardizationand Specification Program, 10 February 1979.DoD Instruction No. 4120.19, Department of DefenseParts Control Program, 27 June 1984.DoD Directive No. 4120.18, Use of Metrit System ofMeasurement, 10 December 1976.DARCOM-P 706-470, Engineering Design Handbook,Metric Conversion Guide, 5 July 1976.DoD Directive No 2010.6, Standardization andInteroperability of Weapons Systems and EquipmentWithin the North Atlantic Treaty Organization(NATO), 11 March 1977.James R. Garver, “The Federal Catalog System”.Army Logistical 16, 6 (November-December 1984).Philip M. Morse, Queues, Inventories and Maintenance,John Wiley and Sons, Inc., New York, NY,1958.J. Philip Geddes, “Hughes Helicopters AH-64 inAdvanced Development”, Interavia (August 1978).Col. George T. Petersen, “Design for Readiness”.Ordnance (September-October 1967).Robert G. D. Steel and lames H. Tori-e, Principlesand Procedures of Statistics, McGraw-Hill BookCompany, New York, NY, 1980, p. 106.AR 700-60, Department of Defense Parts ControlProgram, 5 October 1977.MIL-STD-962A, Outline of Forms and Instructionsfor the Preparation of Military standards and MilitaryHandbooks, 26 October 1984.13. MIL-STD-965, Parts Control Program. 26 August1983.14. MIL-STD-143B, Standards and Specifications,Order of Precedence for the Selection of, 12November 1969.15.16.17.18.19.20.21.22.23.24.DoD Index of Specifications and Standards(DODISS).DoD Manual No. 4120.3-M, Defense StandardizationManual, August 1978.Army Master Data File (AMDF).CDA Pamphlet No. 18-1, Code Reference Guide.Cataloging Handbook H2-1, Federal Support Classification,Part 1, Groups and Classes.AR 708-1, Cataloging and Supply ManagementData, 1 April 1981.“National Stock Numbers Increase”, Army Logistician14, 4 (July-August 1982).AR 750-43, Test, Measurement, and DiagnosticEquipment, 1 March 1984.US Army Test Program Sets Procedures Manual,AMCPM-TMDE-T, Fort Monmouth, NJ, 31 January1986.DA Pam 700-12-1, DA TMDE Preferred Items List(PIL).3-13
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