MIL-DTL-13169E
4.2.8 Rejected lot. Failure to pass any of the tests and inspections 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.
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, group B or C inspection shall be repeated on the 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). Group A inspection may be re-instituted; however, final acceptance and shipment
shall be withheld until group B or C inspection has shown that the corrective was successful. In the event
of failure after re-inspection, information concerning the failure shall be provided to the cognizant
inspection activity.
4.2.10 Test equipment and inspection facilities. Test and measuring equipment and inspection
facilities of sufficient accuracy, quality, and quantity to permit performance of the required inspection shall
be established and maintained by the contractor. The establishment and maintenance of a calibration
system to control the accuracy of the measuring and test equipment (e.g., non-Government standard
(NGS) or federal or defense standard) shall be in accordance with NCSL Z540.3 or equivalent.
4.3 Methods of inspection.
4.3.1 Visual and dimensional inspection. The finished wire shall be inspected to verify that the
materials, construction, and workmanship are in accordance with the applicable requirements.
4.3.1.1 Insulation thickness. The insulation thickness shall be measured using method 1018 of FED-
4.3.1.2 Outside diameter. The outside diameter of the finished wire shall be measured by using
method 1011 of FED-STD-228.
4.3.2 Physical properties of insulation.
4.3.2.1. Condition and age. Specimens shall not be heat treated, immersed in water or subjected to
any mechanical or chemical treatment not specified herein. No tests shall be made within 24 hours after
manufacture unless agreed to by the manufacturer.
4.3.2.1.1 Tensile strength. Tensile strength shall be determined in accordance with method 3021 of
FED-STD-228, except that flat, smooth, steel grips of the self-aligning type may be used.
4.3.2.1.2 Elongation. Elongation shall be determined in accordance with method 3031 of FED-STD-
228, except that bench marks shall be 2 inches (50.8mm) apart, and flat, smooth, steel grips of the self-
aligning type may be used. The elongation after aging shall be based on the bench marks applied before
aging.
4.3.2.1.3 Set. Set shall be determined in accordance with method 3161 of FED-STD-228, except
that the bench marks shall be 2 inches (50.8 mm) apart. The test specimens shall be stretched so that the
distance between bench marks is 6 inches (152 mm); they shall be released within 5 seconds. The set
shall be determined 1 minute after the beginning of release. Flat, smooth, steel, grips of the self-aligning
type may be used.
4.3.2.1.4 Tensile stress. Apparatus and procedure shall be as specified in method 3041 of FED-
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