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|  MIL-R-5757H
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.
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