MILDTL28803C
4.5.2 Qualification verification inspection. Qualification verification inspection shall consist of group B. Except
where the results of these inspections show noncompliance with the applicable requirements (see 4.5.2.1.3), delivery
of products which have passed group A shall not be delayed pending the results of these qualification verification
inspections.
4.5.2.1 Group B inspection. Group B inspection shall be completed in accordance with table II within 3 years after
initial qualification and within each 3-year period thereafter. A manufacturer's normal quality control tests, production
control tests, production tests, and environmental tests may be used to fulfill all or part of group B inspection;
however, all of group B inspection shall be completed as specified.
4.5.2.1.1 Failures. If one or more sample units fail group B inspection, the sample shall be considered to have
failed.
4.5.2.1.2 Disposition of sample units. Sample units subjected to group B inspection shall not be delivered on a
contract or order; however, they shall be forwarded to the qualifying activity.
4.5.2.1.3 Noncompliance. If a sample fails group B inspection, the supplier shall take corrective action on those
materials and/or processes, as necessary, and on all units of product which can be corrected and which were
manufactured under essentially the same conditions, with essentially the same materials, 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 has been taken, group B inspection shall
be repeated on additional sample units (all inspection, or the inspection which the original sample failed, at the option
of the Government). Group A inspection may be reinstituted however, final acceptance shall be withheld until the
group B reinspection 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 cognizant inspection activity
and the qualifying activity.
4.5.3 Inspection of packaging. Sample packages and packs and the inspection of the preservation-packaging,
packing, and marking for shipment and storage shall be in accordance with
4.6 Methods of examination and test.
4.6.1 Visual and mechanical examination. The visual and mechanical features of the displays, associated
modules and component parts shall be inspected using suitable optical aids and mechanical measurement gages
(i.e., calipers, micrometers, pin gages, templates, etc.) capable of sufficient accuracy, precision and resolution to
accomplish the necessary measurements. Only two of the sample units shall be inspected for compliance to physical
dimensions.
4.6.1.1 Materials inspection. Materials inspection shall consist of certification supported by verifying data that the
materials used in fabricating the displays are in accordance with the applicable referenced specifications or
requirements prior to such fabrication.
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