MIL-DTL-24308G
4.5 Methods of inspection.
4.5.1 Test methods. The following tests and test procedures assure connector integrity within typical operating
conditions and applications. Alternate commercial industry standard test methods are allowed. However when and
alternate methods are used, the qualifying activity must be notified prior to performance of the test. The test methods
described herein are proven methods and shall be the referee method in cases of dispute.
4.5.2 Visual and mechanical inspection. Connectors and contacts shall be examined to verify that the dimensions,
materials, design, construction, marking, and workmanship are in accordance with the applicable requirements (see
4.5.3 Magnetic permeability (classes M and N) (see 3.5.1). Permeability shall be measured on classes M and N
connectors with an instrument conforming to ASTM A342/A342M. The connectors may be wired or unwired, but shall
not be carrying current. Requirements shall be as specified in 3.5.1.
4.5.4 Maintenance aging (crimp contact connectors only (see 3.5.2)). Connectors shall be tested in accordance
with test procedure EIA-364-24. Installing/removal tools shall be in accordance with the applicable specification sheet
(see 3.1). Twenty percent of the contacts in a plug or receptacle, but not less than three contacts per connector
mating half, shall be tested.
4.5.5 Contact insertion and removal forces (see 3.5.3). Contacts shall be inserted and removed in accordance with
test procedure EIA-364-05. Installing/removal tools shall be in accordance with the applicable specification sheet
(see 3.1).
4.5.6 Mating and unmating force (see 3.5.4). Mated connectors shall be tested in accordance with test procedure
EIA-364-13. The rate of mating and unmating shall be 1 to 10 inches per minute.
4.5.7 Contact retention (see 3.5.5). Connectors shall be tested in accordance with test procedure EIA-364-29.
The following details shall apply:
a.
Axial direction: Shall be applied in both directions.
b.
Axial load: As specified.
4.5.8 Dielectric withstanding voltage (see 3.5.6).
4.5.8.1 Sea level. Unmated connectors shall be tested in accordance with test procedure EIA-364-20, condition I.
The applicable test voltages specified in 3.5.6 shall be applied between all adjacent contacts and between the shell
and each peripheral contact. Requirements shall be as specified in 3.5.6. For group A inspection testing, voltage
may be applied for a minimum of 10 seconds.
4.5.8.2 Altitude. The connectors shall be tested in accordance with test procedure EIA-364-20, condition IV. After
5 minutes at the simulated altitude, the connectors shall be tested as specified in 4.5.8.1.
4.5.9 Cable retention (flat cable only) (see 3.5.7). The unmated wired connector with strain relief, when applicable,
shall be mounted by normal mounting means and aligned with the test fixture. An axial force of 8 ounces per contact
shall be applied. The force shall be applied 6 inches from the mating face of the connector to the cable and shall pull
away from the connector in a direction that will put the maximum stress on the contact-cable interface.
4.5.10 Insulation resistance at ambient temperature (see 3.5.8). Unmated connectors shall be tested in
accordance with test procedure EIA-364-21. The resistance shall be measured between the contact shell and a point
including 50 percent, (but not less than four) of the contact pairs adjacent to the contact shell, or between the contact
shell and a point including 50 percent, (but not less than six) of the contacts adjacent to the contact shell. The
contacts selected shall be those having the closest spacing between measurement points and the measured
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