MIL-DTL-83503C
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a. Qualification inspection (see 4.3).
b. Conformance inspection (see 4.4).
4.2 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in
accordance with the test conditions specified in EIA-364. Twenty percent minimum but not less than four
contacts shall be installed in each connector to be tested. When a dimension is called out as a typical, a
random 10 percent but not less than 5 readings shall be taken.
4.2.1 Test equipment and inspection facilities. Test and measuring equipment and inspection facilities
of sufficient accuracy, qualify and quantity to permit performance of the required inspection shall be
established and maintained by the contractor. The establishment and maintenance of a calibration system
to control the accuracy of the measuring and test equipment (i.e. NCSL-Z540.1 or ISO-10012-1 part 1)
shall be required.
4.3 Qualification inspection. Qualification inspection shall be performed at a laboratory acceptable to
the Government on sample units produced with equipment and procedures normally used in production
(see 6.3). Use of alternate materials, plating, and processes shall be identified for inclusion in the product
test documentation (see 3.3.1).
4.3.1 Sample size. Sample size shall be as specified in table II. Connectors with the greatest number
of contact from each specification sheet, for which qualification is desired, shall be subjected to
qualification testing (example: "2 samples" specifies 2 samples from each slash sheet being qualified).
The connectors shall be assembled to uniform lengths of flat cable and printed wiring boards when
applicable, and each connector shall be tested. The conductor size shall be as specified (see 3.1).
4.3.2 Inspection routine. The sample shall be subjected to the inspections specified in table II, in the
order shown. All sample units shall be subjected to the inspection of group I. The sample shall then be
divided as specified in table II for groups II through V inclusive.
4.3.3 Failures. Failure to pass any one of the tests in table II shall be cause for refusal to grant
qualification. All failures shall be attributed to the cause for refusal to grant qualification. All failures shall
be attributed to the connector unless data is provided showing failure is due to the cable or the text fixture.
4.3.4 Verification of qualification. To retain qualification, the contractor shall verify in coordination with
the qualifying activity the capability of manufacturing products which meet the performance requirements
of this specification. Refer to the qualifying activity for the guidelines necessary to retain qualification to
this particular specification. The contractor shall immediately notify the qualifying activity at any time that
the inspection data indicates failure of the qualified product to meet the performance requirements of this
specification.
4.3.5 Inspection. Inspection shall be performed at a laboratory acceptable to the Government on
sample units produced with equipment and procedures normally used in production (see 6.3).
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