MIL-DTL-3885G
be cold-conditioned. At the end of the conditioning period, and while at the conditioning
temperature, the cable shall be flexed rapidly for 30 cycles through a 180 degree arc (±90 degrees
off cable axis). The flexing procedure shall be repeated in a plane 90 degrees to the plane of
initial flexing and parallel to the cable axis. At the conclusion of the test, the specimen shall be
examined visually at room temperature under 3X magnification. The cable assembly shall meet
the requirements of 3.9.2.
4.6.3 Thermal shock. The cable assemblies shall be tested in accordance with
method 107 of MIL-STD-202, test condition A, and meet the requirements of 3.9.3.
4.6.4 Moisture resistance. The cable assemblies shall be tested as specified in 3.9.4 in
following conditions shall apply:
b. Cable assemblies shall be placed in the chamber unmated and fully exposed. However,
the connectors may be placed in such a manner so as to prevent water accumulation on the
contact face of the connector.
c. Cable assemblies under test shall not be subjected to electrical loading during
exposure.
d. Method 106: The vibration test as required in step 7 is not required.
e. Method 106: After completion of step 6 cycling, and prior to the opening of the test
chamber, condition the cable assemblies for 24 hours at 23 ±1 °C and 50 ±10 percent relative
humidity. Following the conditioning period, the cable assemblies shall meet the requirements of
4.6.5 Conductor insulation overcure. The insulated conductor shall be removed from that
section of cable that has been subjected to heat through molding or heat-cured potting. The
insulation with conductors removed shall be of a sufficient length to permit testing per
method 3031 of FED-STD-228. The conductor insulation shall meet the requirements of 3.9.5.
4.6.6 Bend-relief flexibility. Each bend-relief in the cable assembly shall be manually
subjected to 500 continuous flexure cycles, at room temperature, through a 180-degree arc, at
approximately 30 cycles per minute. The connector shall be held in place so that the bend-relief
is free to flex with the cable in one direction through 90 degrees from the axially in-line starting
position, back to the starting position, then through 90 degrees in the opposite direction, and
return to the starting position. Following this test, the cable assembly shall meet the requirements
of 3.9.6.
4.6.7 Vibration. The assembly shall be tested as specified in method 201 of
MIL-STD-202. Following this test, the assemblies shall meet the requirements of 3.9.7. The
following details and exceptions shall apply:
a. Approved mating receptacles shall be rigidly mounted and the cable assembly
connectors mated with the connector-cable axis in the vertical plane.
b. Resonance-free mounting in accordance with method 201 is not applicable.
c. Test and measurements during vibration are not required.
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