CRIMPED TERMINATIONS
MULTIPLE CRIMP PINS & SOCKETS
crimp pins and sockets
MULTIPLE CRIMP PINS & SOCKETS

Multiple crimp pins and sockets are characterized by the presence of separate crimp devices to secure the conductor and the insulation jacket.

The conductor crimp grips the conductor to complete the electrical termination. The insulation crimp grips the insulation jacket to provide strain-relief to the termination.

See Section 2.01 "Crimped Terminations - General Requirements" for common accept/reject criteria.

insulation and conductor crimp preferred conductor length

PREFERRED

Insulation and conductor crimps are properly set and exhibit proper insulation and conductor spacing. Wire strands visible. No exposed base metal or mechanical damage.

PREFERRED

CONDUCTOR LENGTH

The conductor should extend a minimum of flush with and a maximum of one (1) wire diameter beyond the conductor crimp edge.

Best Workmanship Practice

preferred insulation length acceptable excess conductor length

PREFERRED

INSULATION LENGTH

The insulation should extend approximately midway between the insulation crimp and the conductor crimp.

Best Workmanship Practice

ACCEPTABLE

EXCESS CONDUCTOR LENGTH

The conductor may extend into the pin or socket barrel, provided the excess conductor length does not interfere with the mechanical and electrical mating of the pin and/or socket.

Best Workmanship Practice

NASA WORKMANSHIP STANDARDS
NASA logo Released:
03.30.2001
Revision:
Revision Date:
Book:
2
Section:
2.03
Page:
1




CRIMPED TERMINATIONS
MULTIPLE CRIMP PINS & SOCKETS (cont.)
acceptable excess insulation length acceptable minimum conductor length

ACCEPTABLE

EXCESS INSULATION LENGTH

The insulation may extend to the leading edge of the conductor crimp, provided it can be determined visually that the insulation does not enter the conductor crimp.

Best Workmanship Practice

ACCEPTABLE

MINIMUM CONDUCTOR LENGTH

The conductor should extend a minimum of flush with the conductor crimp edge.

Best Workmanship Practice

acceptable minimum insulation length insulation encroachment into the conductor crimp section

ACCEPTABLE

MINIMUM INSULATION LENGTH

At a minimum, the insulation edge may be flush with the trailing edge of the insulation crimp.

Best Workmanship Practice

UNACCEPTABLE

INSULATION ENCROACHMENT

Insulation encroachment into the conductor crimp section may interfere with the proper mechanical and electrical termination of the crimp.

NASA-STD-8739.4 [19.6.2.c.9]

improper strain relief

UNACCEPTABLE

IMPROPER STRAIN RELIEF

The insulation jacket must extend beyond the edge of the insulation crimp, and the crimp must fully engage the jacket to ensure proper strain-relief to the termination.

NASA-STD-8739.4 [19.6.2.c.9]

NASA WORKMANSHIP STANDARDS
NASA logo Released:
03.30.2001
Revision:
Revision Date:
Book:
2
Section:
2.03
Page:
2





Click here for printable .pdf file for Section 203 Crimped Terminations Multiple Crimp Pins & Sockets click here to download Adobe Reader Click here to email the author of the Pictorial Reference Handbook
Need a printed copy?
(May take a while to load.)

Requires Adobe Reader.
Need Adobe Reader?
Click here to download.
Questions? Suggestions?