MIL-DTL-13075C
4.2.2 Sampling. A random sample shall be selected from each lot as specified in table II.
TABLE II. Inspection sample.
Inspection lot
Sample size
size 1/
1
1
2 to 8
2
9 to 90
3
91 to 150
12
151 to 280
19
281 to 500
21
501 to 1,200
27
1,201 to 3,200
36
3,201 to 10,000
38
10,001 to 35,000
46
1/ Lot size is based on the number of units of product
4.2.3 Rejected lot. Failure of any sample to pass any inspection shall constitute a failure of the lot. 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 (see 4.2.4).
4.2.4 Noncompliance. If a sample fails to pass any inspection, 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, the conformance 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 shall be withheld until 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.
4.2.5 Group A inspection. Group A inspection shall include the applicable inspections specified in
table I.
4.2.6 Group B inspection. Group B inspection shall include the applicable inspections specified in
table I. Unless otherwise specified (see 6.2), group B inspection shall be performed on sample units that
have been subjected to and have passed the group A inspection.
4.3 Inspections.
4.3.1 Visual and dimensional inspection. Inspect the strands, finished wire, and Buna-S insulation to
verify that the material and all workmanship comply with this specification. Certification of compliance of
materials may be accepted at the option of the Government.
4.3.2 Dielectric strength. Lengths of insulated conductor shall be tested for dielectric strength. The
insulated conductors to be tested shall be immersed in water for at least 12 hours with the ends
protruding not less than 24 inches. A 60-cycle per second rms alternating voltage of the value specified
below shall then be applied for five minutes between the conductor and the water.
4.3.2.1 Wires W-124 and W-125. Wires W-124 and W-125 shall withstand a test voltage of 5000 Vrms.
The test shall be performed on each insulated conductor of those wires (after the braid is applied).
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