crimping, interconnecting cables, harnesses, and wiring - NASA

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FOREWORD Page 6 of 114 NASA-STD-8739.4 with Change 6 This Standard provides a baseline for NASA project offices to use when preparing or evaluating process procedures for the manufacture of mission hardware or mission critical ground support equipment. This Standard: a. Prescribes NASA’s process and end-item requirements for reliable crimped connections, interconnecting cables, harnesses, and wiring. b. Establishes responsibilities for training personnel. c. Establishes responsibilities for documenting process procedures including supplier innovations, special processes, and changes in technology. d. For the purpose of this Standard, the term supplier is defined as in-house NASA, NASA contractors, and subtier contractors. NASA Installations shall: a. Review and invoke the provisions of this Standard for procurements involving crimped connections, interconnecting cables, harnesses, or wiring of mission hardware and mission critical ground support equipment. b. Review and invoke the provisions of this Standard for in-house operations involving crimped connections, interconnecting cables, harnesses, or wiring of mission hardware and mission critical ground support equipment. c. Tailor specific provisions of this Standard to address program or unique contractual or mission requirements. d. Assure that NASA suppliers invoke this Standard on subcontractors, purchase orders, and on subtier suppliers where applicable. e. Furnish copies of this Standard in the quantities required to NASA suppliers and subtier suppliers. Questions concerning the application of this Standard to specific procurements shall be referred to the procuring NASA installation, or its designated representative. This Standard cancels NASA Assurance Standard (NAS) 5300.4(3G-1), Workmanship Standard for Interconnecting Cables, Harnesses, and Wiring, and NASA Handbook (NHB) 5300.4(3H), Requirements for Crimping and Wire Wrap. This Standard shall not be rewritten or reissued in any other form not approved by NASA. Other processes not covered by this standard may be required. The design, materials, and processes shall be defined in engineering documentation.
Page 7 of 114 NASA-STD-8739.4 with Change 6 Comments and suggestions for improving this Standard may be submitted using the form “NASA Technical Standard Improvement Proposal.” A copy of this form is included at the end of this standard. This version supersedes: NASA-STD 8739.4 with Change 5 dated November 24, 2009 Frederick D. Gregory Associate Administrator for Safety and Mission Assurance NASA-STD 8739.4 Change 5 approved by: Michael G. Stamatelatos, Ph.D. on 29 March 2011
Page 1 and 2: NASA TECHNICAL STANDARD National Ae
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Page 9 and 10: TABLE OF CONTENTS Page 9 of 114 NAS
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Page 15 and 16: LIST OF TABLES Page 15 of 114 NASA-
Page 17 and 18: 2. APPLICABLE DOCUMENTS 2.1 Applica
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Page 23 and 24: 4. GENERAL 4.1 General Page 23 of 1
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Figure 11-4. Group Grounding of Sta
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11.8 Floating Shield Terminations F
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c. Records of examination shall be
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. Shield Terminations: (1) Shield t
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(4) Mating surfaces and coupling me
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(10) Tarnished, corroded, or contam
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WIRE PREPARATION: MECHANICAL STRIPP
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FIGURE A-25 FIGURE A-26 CRIMPS: INS
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FIGURE A-29A CRIMPS: UNACCEPTABLE P
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crimping, interconnecting cables, harnesses, and wiring - NASA

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