MIL-DTL-9177/5C(USAF)
REQUIREMENTS:
Dimensions and configuration: See figures 1 and 2.
Switch: The switch shown on figures 1 and 2 shall be part number MS25089-4B in accordance with
MIL-PRF-8805/3.
Crimp sleeve: Crimp sleeve requirement is applicable.
Tool data: Use M22520/5-01 hand tool with crimp die M22520/5-29, M22520/5-35, or M22520/5-55.
Spring attachment clip: Spring attachment clip requirement is applicable.
Static load: Static load test is applicable.
Insertion and withdrawal forces: The insertion and withdrawal forces shall be as specified:
Insertion force: 13 pounds maximum.
Withdrawal force: 6 pounds minimum, 10 pounds maximum.
Insertion and withdrawal force after spring life: 4.5 pounds minimum.
Frame strength: Frame strength test is applicable.
Body, insulation and shell: Materials shall have electrical and non-electrical properties appropriate for
their intended use in electrical components. Optional materials are as follows:
Body and insulation:
a. Glass-filled polycarbonates in accordance with MIL-P-81390 (M9177/5-1 only).
b. Polystyrene is accordance with ASTM D4549.
c. Glass-filled nylon in accordance with ASTM D4066.
Shell: Optional material is glass filled nylon in accordance with ASTM D4066.
Spring life: The spring life test is applicable.
Contact spring pressure: The contact spring pressure test is applicable.
Spring attachment clip life: Spring attachment clip life test is applicable.
Clip separation force prior to cycling:
Initiation of jaw separation: 2 pounds minimum, 4 pounds maximum.
Jaws open (full): 6 pounds maximum.
Anti-rotation detents: Anti-rotation requirement is applicable.
Cable retention: Cable retention test is applicable. The test cable shall be WF-14U. The force shall be
30 pounds minimum.
Marking: Identification marking shall include both U-94A/U and the M9177/5-1 or M9177/5-2 number,
as applicable.
Specified mating connector: For testing, the specified mating connector shall be M9177/1-1.
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