MIL-DTL-9177C
withheld until group C reinspection has shown that the corrective action was successful. In the event of
failure after reinspection, information concerning the failure and the corrective action taken shall be
furnished to the cognizant inspection activity and the qualifying activity.
TABLE III. Group C inspection.
Inspection
Requirement paragraph
Test method paragraph
Subgroup 1 (6 specimens)
Moisture resistance
3.6.9
Torque
Controlled drop
3.6.14
Shell impact
3.6.17
Static load
3.6.16
Subgroup 2 (6 specimens)
Thermal shock
Vibration
3.6.10
Shock (specified pulse)
3.6.11
Salt spray
Torque
Frame strength
3.6.19
Spring attachment clip life
4.5.3 Inspection of packaging. Sample packages and packs and the inspection of the preservation,
packing and marking for shipment and storage shall be in accordance with the requirements of MIL-DTL-
55330.
4.6 Methods of inspection.
4.6.1 Visual and mechanical inspection (see 3.1, 3.4, 3.5, 3.7, and 3.8). Connectors shall be inspected to
verify that the materials, screw threads, physical dimensions, marking, and workmanship are in
accordance with the applicable requirements.
4.6.2 Contact mating (see 3.6.1). A test plug conforming to figure 1 is mated to the jack. Each jack shall
be monitored for electrical continuity using a test current of 100 ± 2 milliamperes. Any discontinuity
constitutes a failure.
4.6.3 Contact resistance (see 3.6.2). The test connector shall be mated to the approved mating
connector six times before testing, to insure that the connector is clean. With the test connector mated to
the approved mating connector, a direct current of 100 ± 2 milliamperes shall flow through the contacts
under test. The contact resistance shall be measured between each test connector terminal and the
corresponding mating connector terminal at the point of normal connection.
4.6.4 Insulation resistance (see 3.6.3). Connectors shall be tested in accordance with method 302, test
condition B of MIL-STD-202, except electrification time shall not exceed 1 minute.
4.6.5 Dielectric withstanding voltage (see 3.6.4). Connectors shall be tested in accordance with method
301 of MIL-STD-202. The following details shall apply:
a. Magnitude of test voltage and nature of potential 500 volts ac.
b. Duration of application For qualification inspection, the test voltage shall be applied at a rate of
100 volts per second. For quality conformance inspection, the voltage may be applied
instantaneously and shall be maintained for at least 5 seconds.
c. Points of application Between mutually insulated terminals of the connector.
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