crimping, interconnecting cables, harnesses, and wiring - NASA

More documents

Recommendations

Info

Page 90 of 114 NASA-STD-8739.4 with Change 6 (Requirement). Indents shall be symmetrical and centered on the crimp barrel (Requirement). There shall be no exposed base metal or other damage (Requirement). 19.15.2 Installation. Crimp contacts are assembled to conductors outside of the connector (see Figure 19-32) and are subsequently installed into the connector body (see Figure 19-33). When a connector is properly assembled, contacts are captured inside the connector. On terminal junctions and certain insertable crimp-contact connectors, contacts are not exposed for push testing. Contacts shall be properly installed and retained (i.e., locked-in/seated) within the cavities and withstand the axial (i.e., contact retention) loads specified in Table (19-2), without dislodging or damaging the contact, wire sealing grommet, cavity, or the contact retention mechanism (Requirement). Contact Barrel Size Table 19-1. Crimp Tensile Strength Values for Wire-in-Line Junction (i.e., Jiffy Junction) Devices Wire Size (AWG) Base Conductor Material w/Nickel Plating Tensile Strength (Pounds, Minimum) Pin Contacts Socket Contacts 22 26 Copper 3 3 26 Copper Alloy 3 - 24 Copper 5 - 24 Copper Alloy 5 - 22 Copper 8 8 22 Copper Alloy 8 - 20 24 Copper 8 6 24 Copper Alloy 14.4 - 22 Copper 12.8 - 22 Copper Alloy 22.2 - 20 Copper 20.6 10 16 20 Copper 20.6 10 16 Copper 41.2 29 12 14 Copper 65.1 34 12 Copper 103.2 65 8 8 Copper 288 -
Page 91 of 114 NASA-STD-8739.4 with Change 6 Table 19-2. Contact Retention Values for Wire-in-Line Junction (i.e., Jiffy Junction) Devices Contact Size Axial Load (pounds) Pin Contacts Socket Contacts 22 3.0 to 5.0 3.0 to 5.0 20 3.0 to 5.0 3.0 to 5.0 16 4.0 to 7.0 4.0 to 7.0 12 4.0 to 7.0 4.0 to 7.0
Page 1 and 2:
NASA TECHNICAL STANDARD National Ae
Page 3 and 4:
Status Document Revision DOCUMENT H
Page 5 and 6:
This page intentionally left blank.
Page 7 and 8:
Page 7 of 114 NASA-STD-8739.4 with
Page 9 and 10:
TABLE OF CONTENTS Page 9 of 114 NAS
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
LIST OF TABLES Page 15 of 114 NASA-
Page 17 and 18:
2. APPLICABLE DOCUMENTS 2.1 Applica
Page 19 and 20:
PVDF Polyvinylidene Fluoride RF Rad
Page 21 and 22:
Page 23 and 24:
4. GENERAL 4.1 General Page 23 of 1
Page 25 and 26:
5. TRAINING AND CERTIFICATION PROGR
Page 27 and 28:
Page 29 and 30:
6. FACILITIES, EQUIPMENT, MATERIALS
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
8. INTERCONNECTING CABLE/HARNESS FI
Page 39 and 40: Page 39 of 114 NASA-STD-8739.4 with
Page 41 and 42: Figure 9-1. Starting Stitch Figure
Page 45 and 46: Figure 9-8. Starting Lock Figure 9-
Page 47 and 48: 9.7 Metal Braid Shielding Figure 9-
Page 57 and 58: Figure 11-4. Group Grounding of Sta
Page 59 and 60: 11.8 Floating Shield Terminations F
Page 63 and 64: c. Records of examination shall be
Page 89: Page 89 of 114 NASA-STD-8739.4 with
Page 95 and 96: . Shield Terminations: (1) Shield t
Page 97 and 98: (4) Mating surfaces and coupling me
Page 99 and 100: (10) Tarnished, corroded, or contam
Page 101 and 102: Page 101 of 114 NASA-STD-8739.4 wit
Page 103 and 104: WIRE PREPARATION: MECHANICAL STRIPP
Page 107 and 108: FIGURE A-25 FIGURE A-26 CRIMPS: INS
Page 109 and 110: FIGURE A-29A CRIMPS: UNACCEPTABLE P
show all

crimping, interconnecting cables, harnesses, and wiring - NASA

Create successful ePaper yourself

Delete template?

Save as template?