MIL-DTL-9177C
3.6.12 Salt spray (corrosion). When connectors are tested as specified in 4.6.13, there shall be no
excessive corrosion of metal parts; the insulation shall not be cracked, warped, or delaminated; and the
contact resistance shall be as specified in 3.6.2. Excessive corrosion shall be construed as any corrosion
which interferes with electrical performance, or, in the case of plated metals, when the corrosive action
has passed through the plating and attacked the base metal or underplate. Exposed screw threads may
be protected with a suitable coating.
applied between the separate metal parts of the connector finger shall cause no damage to, or loosening
of, any parts thereof.
3.6.14 Controlled drop (when specified, see 3.1). When tested in accordance with 4.6.15, there shall be
no damage or loosening of parts affecting performance. Local abrasion or indentation of surfaces due to
load application shall not be considered damage affecting performance. Contact resistance and dielectric
3.6.15 Stack assembly (when specified, see 3.1). When tested in accordance with 4.6.16, there shall be
no damage or loosening of parts affecting performance. Local abrasion or indentation of surfaces due to
load application shall not be considered damage affecting performance. Contact resistance and dielectric
3.6.16 Static load (when specified, see 3.1). When tested in accordance with 4.6.17, there shall be no
visual evidence of mechanical damage, rupture of dielectric materials, or loosening of parts. Local
abrasion or indentation of surfaces due to load application shall be considered permissible damage.
3.6.17 Shell impact. When tested in accordance with 4.6.18, there shall be no visual evidence of
mechanical damage, rupture of dielectric materials, and dielectric withstanding voltage shall be as
specified in 3.6.4. Local abrasion or indentation of surfaces due to load application shall be considered
permissible damage.
3.6.18 Contact spring pressure (when specified, see 3.1).
3.6.18.1 Mated connectors. When tested in accordance with 4.6.19.1, the force required to lift each
contact spring sufficiently to break electrical contact with the mating connector shall be 16 ounces
minimum.
3.6.18.2 Unmated connectors. When tested in accordance with 4.6.19.2, each contact spring of the test
connector shall be deflected by an amount not more than 0.015 (0.38 mm).
3.6.19 Spring life (when specified, see 3.1). When connectors are tested as specified in 4.6.20, there
shall be no damage or loosening of parts, and the contact resistance, dielectric withstanding voltage, and
there shall be no rupture of joints.
3.6.21 Spring attachment clip life (when specified, see 3.1). When tested in accordance with 4.6.22, the
force needed to begin separation of the clip jaws, after cycling, shall be greater than 80 percent of the
force needed to begin separation of the clip jaws prior to testing. The clip separation force prior to cycling
shall be as specified (see 3.1).
3.6.22 Cable retention (when specified, see 3.1). When tested in accordance with 4.6.23, there shall be
no evidence of mechanical failure, individual cord conductor shall not become taut between contact
terminals and cord crimping area, and cord conductors within the connector shall neither be short
circuited nor broken.
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