MIL-DTL-55668D
4.6.1 Inspection lot. An inspection lot shall consist of all cords of the same type (see 3.7) processed
under essentially the same conditions and submitted for inspection at the same time.
4.6.1.1 Unit of product. The unit of product, for purposes of sampling, shall be each continuous length of
cord as specified in the contract or order.
4.6.1.2 Inspection sample. The inspection sample shall be product selected at random and shall be of
the size specified in table VII.
TABLE VII. Inspection sample.
Production lot size 1/
Sample size
2 to 8
2
9 to 15
3
16 to 25
5
26 to 50
8
51 to 90
13
91 to 150
20
151 to 280
32
281 to 500
50
501 to 1200
80
1201 to 3200
125
3201 to 10000
200
10001 to 35000
315
NOTE: 1/ Lot size will be based on number of reels, spools, or coils of product
4.6.1.3 Selection of test specimens. Test specimens for inspection shall be taken from each unit of
product which forms part of the sample.
4.6.1.4 Nonconforming inspection lots. Lots found unacceptable shall be resubmitted for reinspection
only after all units are re-examined or re-tested and all nonconforming units are removed or
nonconformities corrected. The responsible authority shall determine whether normal or tightened
inspection shall be used on reinspection and whether reinspection shall include all types or classes of
nonconformities or only the particular types or classes of nonconformities which caused the initial
rejection.
4.6.1.5 Finished cords. A finished (or completed) cord is one of a definite length, or a continuous length
of straight cord on a reel, spool or coiled as specified in the contract or order, with all manufacturing
operations completed.
4.6.2 Group A inspection. Group A inspection shall include the examinations and tests of table VIII,
subgroups I and II.
4.6.2.1 Subgroup I and II acceptance. Each sample selected in accordance with 4.6.2 shall be examined
to determine conformance with the requirements of table VIII. If one or more defects are found in the
inspection sample, then the production lot shall be inspected for that particular defect and defects
removed. A second inspection sample shall be selected from the production lot and all sampling tests
performed again. If one or more defective items are found in the second inspection sample, the
production lot shall be rejected and shall not be supplied to this specification. Tests for subgroup I may
be performed in any order. Tests for subgroup II shall be performed in the order specified in table VIII.
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