MIL-DTL-83413C
4.6.3 Noncompliance. If a sample fails to pass group B inspection, the manufacturer shall notify the
qualifying activity and the cognizant inspection activity of such failure and take corrective action on the
materials or processes, or both, as warranted, and on all units of product which can be corrected and
which were manufactured under essentially the same conditions with essentially the same materials and
processes, and which are considered subject to the same failure. Acceptance and shipment of the
product shall be discontinued until corrective action, acceptable to the qualifying activity has been taken.
After the corrective action has been taken, group B inspection shall be repeated on additional sample
units (all inspections, or the inspection which the original sample failed, at the option of the qualifying
activity). Group A inspection may be reinstituted; however, final acceptance and shipment shall be
withheld until the group B inspection has shown that the corrective action was successful. In the event of
failure after re-inspection, information concerning the failure shall be furnished to the cognizant inspection
activity and the qualifying activity.
4.7 Methods of inspection.
4.7.1 Visual and mechanical inspection. Specimens shall be inspected to verify that the dimensions,
materials, design, construction, markings, and workmanship are in accordance with the applicable
4.7.2 Detent action (see 3.5.1). The connectors shall be tested in accordance with test procedure 13 of
EIA-364. The following conditions shall apply:
a. during insertion tests, receptacles shall be tested with a test plug at maximum pin diameter
(see 4.2).
b. during withdrawal tests, receptacles shall be tested first with a test plug at maximum pin
diameter, then with a test plug at minimum pin diameter.
c. Repeat the test using the ISO 46 and NATO STANG 3632 plugs at maximum pin
diameter.
4.7.3 Hand-grip force (see 3.5.2). The grounding clamp connector shall be connected to and removed
from a .750 ± .010 inch (19.05 ± .25 mm) diameter rod, with the force required to open the clamp
measured across the handles at a point .500 ± .125 inch (12.70 ± 3.18 mm) from the end.
4.7.4 Side loading (see 3.5.3). The receptacle shall be mated with a test plug, on which a force of 20
pounds shall be applied one inch from the face of the receptacle and in two directions mutually
perpendicular to the axis of insertion.
4.7.5 Torque (see 3.5.4). The mounting nut on the receptacle shall be tightened with a torque of 20 inch
pounds until the nut rotation has stopped. The nut shall then be loosened and the threads inspected.
4.7.6 Engagement (plugs and receptacles (see 3.5.5)). The connector shall be mated with a test
connector and a torque of one inch-pound shall be applied to the bass of the plug in attempt to rotate the
plug in the receptacle. The plug shall then be tested for free movement in the directions of insertion and
withdrawal.
4.7.7 Resistance (see 3.5.6). The test shall be in accordance with test procedure 06 of EIA-364. test
current shall be 10 ±1 amperes and the duration of current flow shall be 10 seconds minimum. Inability of
the specimen to withstand this current shall constitute a failure. Voltmeter probes shall be placed at both
ends of the specimen where current is applied.
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