MIL-DTL-83140B
4.2.3 Maintenance of qualification. At specified intervals as determined by the
qualifying activity, the manufacturer shall demonstrate that the company still has the capabilities
and facilities necessary to produce the QPL items in accordance with this specification and in
accordance with the provisions governing qualification specified in SD-6.
4.3 Conformance testing.
4.3.1 Sampling instructions. When conducting the conformance tests specified in table
III, one continuous sample of sufficient length shall be taken after any discard has been removed
from the head or starting end of the first manufacturing reel for each lot of wire rope.
4.3.2 Lot. A wire rope lot shall consist of not more than 20,000 feet of wire rope of the
same construction and diameter produced continuously by one machine or by one series of
progressive processing machines.
4.3.2.1 Identification of reels. Each manufacturing or shipping reel shall be uniquely
identified by the manufacturer. The identification shall provide traceability to the original
manufacturer's production lot, including as a minimum, the date of manufacture and the material
lots used.
4.3.2.2 Rejection. The failure of any specimen shall be cause for rejection of the lot
represented by the sample.
4.3.3 Certified test report. If specified (see 6.2), the manufacturer shall furnish a
certified test report showing that the manufacturer's product satisfactorily conforms to this
specification. The test report shall include, as a minimum, actual results of the tests specified
herein.
4.4 Tests. All tests specified herein shall be conducted at ambient room temperature.
4.4.1 Preparation of test specimens. Individual lengths of wire rope shall be prepared as
described in the test procedures listed. When required, the wire rope shall be cut to the length
specified and shall be swaged with steel terminations (ball terminations shall not be used) in
accordance with MIL-DTL-781.
4.4.2 Ductility of steel. A specimen from the wire sample shall be wrapped in a way
that does not cause indenting. The wire shall be wrapped around a cylindrical mandrel for two
complete turns in a close helix at a rate not exceeding 15 turns per minute. The cylindrical
mandrel diameter shall be equal to the nominal wire diameter being tested (see 3.2.1.1).
4.4.3 Examination of product. All wire rope shall be examined for workmanship and
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