MIL-DTL-24308G
4.5.14 Air leakage (classes H and K connectors) (see 3.5.12). Classes H and K connectors shall be mounted in a
manner suitable for application of one atmosphere pressure differential across the connectors, and tested in
accordance with test procedure EIA-364-02. The leakage rate shall be determined while pressurized air or gas,
containing not less than 10 percent helium by volume, is applied to the connector. Requirements shall be as
specified in 3.5.12.
4.5.15 Humidity (see 3.5.13). The connectors shall be fully wired. The unmated and wired connectors shall be
subjected to a humidity test in accordance with test procedure EIA-364-31, method IV and with the following
a.
After the 24 hour conditioning period, the insulation resistance shall be measured.
b.
Upon completion of step 6 of the final cycle, connectors shall be removed from the chamber and surface
moisture removed from the insulators. Immediately following removal of surface moisture, the insulation
resistance tests (see 4.5.10) and the sea level dielectric withstanding voltage test (see 4.5.8.1) shall be
conducted.
4.5.16 Vibration (see 3.5.14). The connector assembly shall be mounted as specified herein and vibrated in
accordance with test procedure EIA-364-28, test condition IV. All contacts shall be wired in series with at least 100
milliamperes of current allowed to flow. A suitable instrument shall be employed to monitor the current flow and to
indicate any discontinuity or interruption of current flow. Requirements shall be as specified in 3.5.14.
4.5.16.1 Connector mounting. Each receptacle shall be mounted on a suitable fixture, which in turn shall be
attached to a vibration table. A suitable sensor shall monitor the receptacles at a point on or near the receptacle. A
counterpart plug shall be engaged with the receptacle and shall not be held by any locking means. The wire bundles
or cables attached to the receptacle shall be clamped to nonvibrating points at least 8 inches from the rear of the
receptacle. The wire bundles or cables attached to the plug shall be clamped to a vibrating point 4 ±1/2 inches from
the rear of the plug. The clamping length shall be chosen to avoid resonance of the wire bundles or cables. To
eliminate possible wire breakage when testing connectors wired with number 28 AWG wire, a strain relief clamp that
mounts directly to the connector and reduces the clamping length of the wire bundle to a minimum is permitted.
4.5.16.2 Printed wiring board connector mounting. Right angle connectors shall have the receptacle mounted on
an epoxy glass printed wiring board, 1/16 inch minimum (plus added tolerances) thick and clamped to a suitable
fixture which in turn shall be firmly mounted on the vibration table. Each plug shall be mounted in the normal manner
at one end of the rectangular epoxy glass laminate board. The board shall be 1/16 inch minimum thick.
4.5.17 Shock (see 3.5.15). Mated connectors shall be subjected to test condition E, test procedure EIA-364-27.
One shock shall be applied in each direction of the three major axes of the connectors. Receptacles shall be mounted
similar to the mounting specified in 4.5.16.1. Plugs shall be engaged with the receptacles and shall not be held by
any locking means. All contacts shall be wired in series with a minimum of 100 milliamperes of current allowed to flow.
The wire bundles or cables shall be clamped to structures that move. A minimum of 8 inches of wire or cable shall be
unsupported behind the rear of the receptacle and 4 ±1/2 inches of wire or cable shall be unsupported behind the rear
of the plug. A suitable instrument shall be employed to indicate any discontinuity or interruption of current flow.
Requirement shall be as specified in 3.5.15.
4.5.18 Durability (see 3.5.16). Connectors shall be tested in accordance with test procedure EAI-364-09. The
following details apply:
a.
Mated and unmated 500 times at a rate of 200 ±100 cycles per hour.
b.
After 500 cycles mated connectors shall be subjected to salt spray.
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