MIL-DTL-22442G
3.5.6 Low temperature flexibility. For cable assemblies with molded or heat-shrunken
components, the insulation of each conductor within a portion of the cable jacket containing a
molded or potted splice, crotch, or other molded or potted section or heat-shrunken transition
(see 6.5), shall be tested for low temperature flexibility. The condition of the test temperature
shall be the lower limit of the cable operating temperature range. If not specified, the
temperature shall be 40 °F. After test, there shall be no visible cracks or other damage in the
molded section or adjacent portion of the cable jacket, and the assembly shall meet the specified
performance requirements of this specification. Testing shall be in accordance with 4.5.8.
3.5.7 Durability. The cable connectors shall exhibit a contact resistance and maximum
mating force or torque as specified in accordance with the applicable drawings or specifications
sheets. After the cable assembly and connector have been subjected to the durability test in
accordance with 4.5.9, connectors and cable assemblies shall show no signs of degradation of
engagement or separation forces, wear of contact plating or coupling mechanisms when tested as
specified herein or in the applicable drawings or specifications.
3.5.8 Ozone resistance. Cable assemblies shall be tested for ozone resistance in accordance
with 4.5.10. At the completion of the exposure period, there shall be no evidence of cracking
when examined under 7X magnification. When polyurethane is used in the construction of cable
assemblies see "NOTE" in 4.5.10.
3.5.9 Jacket elongation. Cable assemblies shall be tested for jacket elongation. Testing
shall be in accordance with 4.5.11. The test requirement shall be governed by the applicable
cable jacketing specification for the section under test. The cable jacketing specification shall be
as specified in the applicable MIL-DTL-22442 specification sheet. If no elongation
requirements are given, the requirement shall be 175 percent minimum.
3.5.10 Durometer hardness. The molded assemblies shall have a durometer hardness of
70 ± 20 Shore A units for both rubber and polyurethane when tested in accordance with 4.5.12.
This shall apply to all molded terminations and other molded sections.
3.5.11 Material reversion (polyurethane and polyacrylic compounds only). Molding,
potting, insulating, or jacketing compounds shall not crack, run, drip, or deform, and the
hardness after conditioning shall be no more than 10 points below the durometer hardness Shore
"A" measured by 3.5.10; for polyurethane compounds cured with non-carcinogenic agents, the
change shall be no more than 15 points below.
3.6 Environmental.
3.6.1 Temperature - altitude. Cable assemblies with electronic components shall meet the
performance requirements of the applicable specification sheet during and after the temperature-
altitude test of 4.6.1. The cable assembly shall be operational when specified by MIL-STD-810.
The steps performed shall be in the sequence specified in 4.6.1.
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