MIL-DTL-26500G
4.6.8.2 Dielectric withstanding voltage, altitude (unmated and mated) (see 3.12.1). The connectors
shall be placed in a suitable chamber at room temperature and tested at 20,000-foot intervals, starting at
10,000 feet and concluding at 110,000 feet. The tests for both mated and unmated connectors shall be in
accordance with test procedure EIA-364-20. Test voltages as shown in table XI, shall be applied
between the closest three pairs of contacts as well as between the shell and the three contacts closest to
the shell. Exposed wire ends in the chamber shall be widely separated or sealed to reduce corona.
4.6.9 Vibration (see 3.13). The connector assembly shall be mounted as specified in 4.6.9.1 and
tested in accordance with test procedure EIA-364-28, test condition IV. In addition, testing shall be
conducted at a low temperature ambient of -55°C and high ambient of 200°C for classes R, H, G, K, and
E, and 175°C for class F. All contacts shall be wired in series. All contacts shall carry a test current of
100 milliamperes maximum and shall be continuously monitored for discontinuities throughout the test. A
suitable instrument shall be used to monitor the current flow and indicate any discontinuity of contact or
interruption of current flow exceeding 1 microsecond. Duration of vibration at extreme temperatures shall
be 25 percent of the duration specified for the standard temperature condition.
4.6.9.1 Connector mounting. The vibration mounting shall be in accordance with figure 2. The
receptacle shall be mounted on an adapter plate using the connector's normal mounting provisions and
suitable hardware. The adapter plate for the receptacle shall be attached to the mounting bracket. The
plug shall be mated with the receptacle as in service. No safety wire or supplementary locking device
shall be used for bayonet connectors.
4.6.10 Shock (specified pulse) (see 3.14). The wired and mated connectors shall be subjected to a
transient deceleration force in accordance with test procedure EIA-364-27. The forces shall be produced
by securing the connectors to a sufficient mass and dropping the assembly through such a height that
when decelerated by resilient impact, a force of 100 gravity units is obtained as outlined in MIL-STD-202,
method 213, test condition C. At least one blow shall be applied in each major axis of the connector so
that the resultant force tends to disengage the connectors. Receptacles shall be mounted by a method
similar to the vibration test on the shock device or carriage. Plugs shall be engaged with the receptacles.
The connectors shall be wired in series with at least 100 milliamperes allowed to flow. The wire bundle or
cable shall be clamped to points that move with the connector. A minimum of 8 inches (203 mm) of wire
or cable shall be unsupported behind each connector.
4.6.11 Ozone exposure (unmated) (see 3.15). The unmated connectors shall be subjected to ozone
having a concentration from 0.010 to 0.015 percent by volume for 2 hours at room temperature.
Following the test, samples shall be examined for signs of ozone deterioration.
22
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business