MIL-R-5757J
4.4 Verification of qualification. The contractor shall forward to the qualifying activity at 12-month intervals a verification of group A inspections and the results of group B tests. At 36-month intervals, a Group C verification shall be provided. The qualifying activity shall establish the initial reporting period. The verification shall consist of:
a. Results of the results of tests performed for inspection of product for delivery, group A, indicating as a minimum the number of lots that have passed and the number that have failed. The results of the testing of all reworked lots shall be identified and accounted for.
b. The results of the tests performed for the quarterly inspection, group B, including the number and mode of failures including the results of all quarterly inspection tests performed and completed for the 12-month maintenance period. If, at any time during this period, the test results indicate nonconformance with specification requirements, the manufacturer shall suspend all shipments of the affected product and shall notify the qualifying activity within five working days with a failure mode. Failure to notify the qualifying activity within five working days may result in removal from the QPL.
Failure to provide verification within 60 days after the end of each 12-month or 36-month period may result in loss of qualification for that product. In addition, the contractor shall notify, within five working days, the qualifying activity of either of the following conditions:
a. After the first six months of the 12-month inspection period, the lot rejection for group A inspection exceeds 20 percent or two lots, whichever is greater, or;
b. During the 12-month and/or 36-month period that the group B or group C inspection indicates failure of the qualified product to meet the requirements of this specification.
If any of the above conditions exist, the manufacturer shall suspend shipment pending acceptance of any failure analysis or corrective action by the qualifying activity.
4.5 Conformance and periodic inspections.
4.5.1 Conformance inspection.
4.5.1.1 Inspection of product for delivery. Inspection of product for delivery shall consist of group A inspection.
4.5.1.1.1 Inspection and production lot.
4.5.1.1.1.1 Inspection lot. An inspection lot shall consist of all the relays of the same specification sheet, and those of similar design and construction, manufactured under essentially the same processes and conditions during a manufacturing period of 1 month maximum. The manufacturer shall define the period for an inspection lot. For purposes of lot formation, all terminal types and mounting configurations may be combined.
4.5.1.1.1.2 Production lot. A production lot shall consist of all relays of the same PIN. Manufacture of all parts in the lot shall have been started, processed, assembled, and tested as a group. Lot identity shall be maintained throughout the manufacturing cycle.
4.5.1.2 Group A inspection. Group A inspection shall consist of the inspections specified in table II.
4.5.1.2.1 A1, A2, and A4 tests. The A1, A2, and A4 tests shall be performed on a production lot basis on 100 percent of the product supplied under this specification, except as noted. Relays that do not meet specification requirements of these groups shall be removed from the lot.
4.5.1.2.1.1 Sampling plan. The tests in A1, A2, and A4 shall be performed on each relay offered for inspection, except as noted.
4.5.1.2.1.2 Rejected lots. Relays that do not meet the requirements of the tests in A1 and A4 shall be rejected and shall be removed from the lot. If more than 5 percent of the relays are discarded during A2 testing, the production lot shall be rejected and not offered for reinspection.
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