MIL-DTL-24317B
4.7.1.2.2 Rejected lots. If an inspection lot is rejected, the supplier may withdraw the lot, rework it to
correct the defects, or screen out the defective units, as applicable, and reinspect. Such lots shall be
separate from new lots, and shall be clearly identified as reinspected lots. Rejected lots shall be
inspected using tightened inspection.
4.7.1.3 Group B inspection. Group B inspection shall consist of the examinations and tests specified in
table VIII, in the order shown, and shall be made on sample units which have been subjected to and have
passed the group A inspection.
4.7.1.3.1 Sampling plan. Statistical sampling shall be in accordance with table VII. A randomly
selected group(s) of samples is required.
4.7.1.3.2 Rejected lots. If an inspection lot is rejected, the supplier may withdraw the lot, rework it to
correct the defects, or screen out the defective units, as applicable, and reinspect. Such lots shall be kept
separate from new lots, and shall be clearly identified as reinspected lots. Rejected lots shall be
inspected using tightened inspection.
4.7.1.3.3 Disposition of sample units. Sample units which have passed group B inspection may be
delivered on the contract or order, if the lot is accepted.
4.7.1.4 Group C inspection. Group C inspection shall consist of the examinations and tests specified in
table V, in the order shown. The lenses, color filters, panel seals and barriers, when applicable shall be
tested as a part of the basic switch. Shipment shall not be held up pending results of the inspection.
4.7.1.4.1 Sampling plan. Sample units as specified in table V shall be selected from each 50,000 units
of all switches, barriers, color filters, lenses, and panel seals covered by the same military specification
sheet produced or within each three year period after the date of notification of qualification whichever
comes first. If one or more sample units fail to pass group C inspection, the sample shall be considered
to have failed. A manufacturer's normal quality control tests, production tests, environmental tests, and
so forth, may be used to fulfill all or part of group C inspection; however, all of group C inspection shall be
completed as specified.
4.7.1.4.1.1 Group C suspension: At the request of the manufacturer, group C testing may be
suspended with the qualifying activity's approval if it can be demonstrated that these test have been
performed three consecutive times with zero failures. If the design, material, construction, or processing
is changed or if there are any quality problems or failures, or at their discretion the qualifying activity may
require resumption of the original testing requirement. Suspension of testing does not relieve the
manufacturer form meeting the group C test requirements.
4.7.1.4.2 Disposition of sample units. Sample units which have been subjected to group C inspection
shall not be delivered on the contract or order.
4.7.1.4.3 Noncompliance. If a sample fails to pass group C inspection, the supplier shall take
corrective action on the materials or processes, or both, as warranted, and on all units of product which
can be corrected and which were manufactured under essentially the same conditions, with essentially
the same materials, and processes, and which are considered subject to the same failure. Acceptance of
the product shall be discontinued until corrective action, acceptable to the Government, has been taken.
After the corrective action, acceptable to the Government, has been taken. After the corrective action has
been taken, group C inspection shall be repeated on additional sample units (all inspection or the
inspection which the original sample failed, at the option of the Government). Groups A and B inspection
may be reinstituted; however, final acceptance 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 and corrective action taken shall be furnished to the contracting officer, and to the qualifying
activity.
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