MIL-DTL-83538D
4.6.4.1 Coupling torque of bayonet coupled component. Mating connectors shall be coupled and
uncoupled. The torques which must be applied to facilitate full coupling and uncoupling shall be as
specified in 3.8.1.
4.6.4.2 Coupling force. Mating connectors shall be coupled and uncoupled. The forces which must be
applied to facilitate full coupling and uncoupling shall be as specified in 3.8.2.
4.6.4.3 Decoupling. Using an appropriate test fixture that can apply up to a 320 Newton force, the
connector halves shall physically and completely separate after the application of the 320 Newton force
(see 3.8.3).
4.6.4.4 Self-alignment. The connector shall be tested for compliance with the alignment provisions of
3.8.4 by mounting the launcher receptacle with attached buffer in a fixed mounting assembly and
mounting the store receptacle in an adjustable but fixed mount assembly.
4.6.5 Durability. The wired, assembled launcher receptacles (with buffer plug) and store receptacles
shall be mated and unmated 500 cycles at a rate of 300 cycles per hour maximum. The mating and
unmating shall be accomplished so that the launcher receptacle/buffer plug and buffer plug/store
receptacle assembly are completely separated during each cycle. The mating shall use a suitable
blind-mate actuation mechanism such that the alignment pins of the connectors are exercised (see 3.9).
4.6.6 Altitude immersion. Qualifications only. Mated connectors shall be tested in accordance with
test procedure EIA-364-03. The following details shall apply (see 3.10):
a. Service rating N shall apply to size 16 and size 20 contact locations only.
b. All wire ends shall be located within the chamber and exposed to the chamber atmosphere but not
submerged or sealed.
c. At the end of the third cycle, while the connectors are still submerged in the solution, the insulation
resistance at ambient temperature, shall be measured as specified in 4.6.7.1 and the dielectric
withstanding voltage test shall be performed as specified in 4.6.8.1.
d. A suitable fixture shall apply the holding force specified in 3.4.7.2 to hold the connector pair
together.
4.6.7 Insulation resistance.
4.6.7.1 Insulation resistance at ambient temperature. Unmated store receptacle and combined
launcher receptacle/buffer plug connectors shall be tested as specified in test procedure
EIA-364-21. The following details and exceptions shall apply (see 3.11.1):
a. For lot acceptance testing, where it is undesirable to install actual contacts in connectors,
simulated contacts and special techniques may be used in performing this test.
b. The tolerance on the applied voltage shall be ± 10 percent.
c. Connectors shall be mated when testing after altitude immersion, humidity and altitude
(low temperature).
4.6.7.2 Insulation resistance at elevated temperature. Unmated store receptacle and
combined launcher receptacle/buffer plug connectors shall be tested as specified in test procedure
EIA-364-21. The following details and exceptions shall apply (see 3.11.2):
a. The tolerance on the applied voltage shall be ±10 percent.
b. Test temperature of 175 +5°C, -0°C, for 30 minutes.
c. Measurements shall be made while the connectors are still in the chamber at the specified
temperature.
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