MIL-DTL-3849C
4.5.5 Rejected lot. Failure of a lot to pass any test or inspection constitutes failure of the lot and the
lot shall be rejected. If an inspection lot is rejected, the contractor may rework the lot to correct the
defects, or screen out the defective units and resubmit the lot for re-inspection. Such lots shall be
separated from new lots and shall be identified as re-inspected lots.
4.5.6 Non compliance. If a sample fails to pass Group B inspection (see 4.5.3), the contractor shall
notify the cognizant inspection activity of such failure and take corrective action on the materials or
processes, or both, as warranted, on all units of the product. Acceptance and shipment of the product
shall be discontinued until corrective action has been taken. After the corrective action has been taken,
sampling inspection shall be repeated on replacement articles. (This includes all tests and examinations,
or only the test that the original sample failed, at the option of the cognizant inspection activity.) Final
acceptance and shipment will be withheld until 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
provided to the cognizant inspection activity.
4.6 Methods of inspection.
4.6.1 Visual and dimensional inspection. The finished cords shall be given a visual and dimensional
inspection for conformance with applicable requirements of 3.1, 3.8 and table III.
4.6.2 Electrical inspections.
4.6.2.1 Dielectric withstanding voltage (DWV (see 3.6.1)). The finished cords shall be tested as
specified in FED-STD-228, method 6111, and shall meet the requirements of 3.6.1. The following details
shall apply:
a. The test shall be performed on finished cords only.
b. The immersion period shall be not less than 9 hours.
c. One terminal shall be each conductor in turn, and the other terminal shall be all the
remaining conductors tied together in electrical contact with the water.
d. Immediately after the DWV test the insulation resistance shall be measured as specified in
3.6.2
4.6.2.2 Insulation resistance (see 3.6.2). The insulation resistance of the finished cords shall be
determined as specified in FED-STD-228, method 6031, and shall meet the requirements of 3.6.2. The
following details shall apply:
a.
The test shall be performed on finished cords only.
b.
The immersion period shall be not less than 9 hours.
c.
The test voltage shall be not less than 500 volts dc.
d.
The polarity of the conductor shall be maintained negative with respect to the water.
e.
One terminal shall be each conductor in turn. The other terminal shall be all the remaining
conductors tied together in electrical contact with the water.
f. If measurements are made at a temperature other than 15.6° C, the measured insulation
resistance values shall be corrected to 15.6° C.
4.6.2.3 Continuity (see 3.6.3). Each conductor of the finished cord shall be tested for continuity using
a maximum test voltage of 10 volts, and shall meet the requirements of 3.6.3.
4.6.2.4 DC resistance (see 3.6.4). The DC resistance of each conductor shall be determined in
accordance with FED-STD-228, method 6021 and shall meet the requirements of 3.6.4.
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