MIL-PRF-18148D
3.9.4 Cleaning, drying, and lubrication. Connectors shall be cleaned by any process,
which will accomplish thorough cleaning without damage to the item. Connectors shall be dried
by any process that will accomplish thorough drying of the item, provided the process does not
injure the item or its function. Moving parts shall be lubricated. Electrical contacting surfaces
(such as terminals and pins) shall be lubricated.
3.10 Color and marking. The connectors shall conform to the requirements listed below
and in the applicable specification sheet when examined in accordance with the visual and
mechanical inspection of 4.5.2. The color and identification marking shall be impervious to the
indicated liquids when tested in accordance with 4.5.15.
3.10.1 Color. The color of all parts of the connector that are visible when the item is
installed shall be in accordance with the applicable specification sheet (see 6.8.4).
3.10.2 Identification marking. Markings shall be located as shown on the applicable
specification sheet. The polarity shall be conspicuously and durably marked on the connector
and shall be adjacent to the terminals as shown on the applicable specification sheet. Positive
terminal markings shall be impressed or embossed with a "+". Negative terminal markings shall
be impressed or embossed with a "-". The assigned PIN shall be impressed or embossed on the
connector. If necessary due to space limitations, the PIN may be broken or separated at the slash
and the slash omitted. The manufacturer's name or CAGE code shall be impressed or embossed
on each item.
3.11 General requirements. The connector, during or after subjection to any tests
specified herein, shall not show:
a. Dimensional distortion or bulging beyond specified limits.
b. Cracking, blistering, pitting, softening, rough spots, or discoloration.
c. Mechanical failure of any part, including breaking off, loosening, or rotating.
d. Breakdown of insulation, arcing, stripping of or damage to metal plating, or loosening
of protective coating.
e. Corrosion of metal parts. However, if a component (for example, a spring or
receptacle pin) is made of 400-series stainless steel, then minor surface corrosion is permitted.
f. Deterioration of identification markings.
g. Shearing, breaking, bending, or deterioration.
h. Significant wear.
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