MIL-DTL-5683B
4. VERIFICATION
4.1 Conformance inspection. Conformance inspection shall include tests 4.3.1 through 4.3.4.
4.2 Sampling. Test specimens shall be selected from the general run of production.
Sufficient terminals to insure uniformity and conformance to the specified requirements shall be
selected at random from each lot for test.
4.2.1 Lot. A lot shall consist of all terminals of the same type and size produced from the-
same lot of steel and submitted for inspection at the same time.
4.3 Tests.
4.3.1 Examination of Product. Terminals shall be carefully inspected for conformance with
the requirements of this specification with respect to workmanship, form, dimensions, threads,
and marking.
4.3.2 Corrosion Resistance.- The terminals selected for inspection shall be tested for
corrosion resistance in accordance with the Salt Spray tests specified in Specification ASTM G47
and ASTM G69.
4.3.3 Tensile Strength. Tensile load shall be gripped through a stay bolt screwed into the
threaded end of the sample terminal, and an eyebolt or plate held by a clevis pin in the fork end of
the terminal.
4.3.4 Resistance to Bending. Terminals shall be gripped by the cylindrical shank and the
prongs of the fork bent through the specified angle by means of a gradually applied pressure.
4.4 Rejection and Retest.
4.4.1 Failure Under Tensile Strength or Resistance to Bend Test. If a test specimen fails to
meet either of the tests, one more terminal shall be selected from the same lot. If this terminal
fails to meet either or both of the required tests, the entire lot which it represents shall be rejected.
The manufacturer may be allowed to reheat treat the whole lot of terminals before final tests are
made. However, where failure is definitely ascribed to faulty material, no retest shall be
permitted.
4.4.2 Failure Under Corrosion Resistance Tests. If any sample terminal fails to conform to
the corrosion resistance requirements, the Inspector shall select from the lot, additional samples,
three times as many as the number which failed. The failure of any of these additional samples
shall be cause for rejection of the entire lot represented. The Inspector may, at his discretion,
permit the manufacturer to strip and replate lots of tie rod terminals rejected due to failure to
conform to corrosion-resistance requirements. In this case, however, the Inspector shall select
samples, and witness corrosion-resistance tests of twice as many terminals from the replated lot
as were originally selected as samples from the lot.
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