MIL-DTL-83517A
4.4.2 Periodic inspection. Periodic inspection shall consist of group C. Except where the results of
these inspection shown noncompliance with the applicable requirements (see 4.4.2.1.4), delivery of
products which have passed groups A and B shall not be delayed pending the results of these periodic
inspections.
4.4.2.1 Group C inspection. Group C inspection shall consist of the inspections specified in table VII,
in the order shown. Group C inspection shall be made on sample units selected from inspection lots
which have passed the groups A and B inspection.
4.4.2.1.1 Sampling plan. Six sample units of the same part number shall be selected from the first lot
produced after the date of notification of qualification. Thereafter, six sample units of the same part
number shall be selected from current production after 200,000 connectors have been produced, or not
less than once every 3 years, whichever occurs first. The sample units shall be divided equally and
subjected to the inspection of the three subgroups.
4.4.2.1.2 Failures. If one or more sample units fail to pass group C inspection, the lot shall be
considered to have failed.
4.4.2.1.3 Disposition of sample units. Sample units which have been subjected to group C inspection
shall not be delivered on the contract or order.
4.4.2.1.4 Noncompliance. If a sample fails to pass group C 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 are manufactured under essentially the same materials and processes, and which are considered
subjected 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 C inspection shall be repeated on additional sample units (all tests and examinations, or the
test which the original sample failed, at the option of the qualifying activity). Groups A and B inspections
may be reinstituted; however, final acceptance and shipment shall be withheld until the group C
inspection has shown that the corrective action was successful. In the event of failure after reinspection,
information concerning the failure shall be furnished to the cognizant inspection activity and the qualifying
activity.
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