MIL-DTL-28751A
3.5.3 Between strength members and jacket. The shear strength between the strength members and
the jacket shall be a minimum of 100 pounds (444.82N) per linear foot (305 mm) of cable. The shear
strength between each layer of jacket shall be 100 pounds (444.82N) per linear foot (305 mm).
3.6 Length. Unless otherwise specified in the contract or order, the cable shall be provided in not less
than 2000 feet (610 m) continuous lengths (with no joints or splices regardless of longer lengths).
3.7 Identification.
3.7.1 Manufacturer's identifications. Manufacturer's identification shall consist of coloring the solid
dielectric core in accordance with a manufacturer's identification color to be assigned by a Government
approved Laboratory. Coloring of the core shall not affect the characteristics of the cable.
4. VERIFICATION
4.1 Classification of inspection . The inspection requirements specified herein are classified as follows:
a. First article inspection (see 4.2).
b. Conformance inspection (see 4.3).
4.1.1 Inspection conditions. Unless otherwise specified, all inspections shall be performed in
accordance with the test conditions specified herein (applicable test method document or applicable
paragraph(s) in the specification).
4.2 First article inspection. Unless otherwise specified (see 6.3), a 300-foot (91.4 m) sample of cable
constructed in accordance with this specification shall be required for first article inspection.
4.3 Conformance inspection.
4.3.1 Sampling. A sample of cable shall be selected from each reel for the examination and tests of
4.3.2 and 4.4.4. Samples of sufficient length shall be selected from every 40,000 feet (12.2km) of cable
for the tests of 4.4.2, 4.4.3, 4.4.5 and 4.4.6.
4.3.2 Visual and dimensional examination. The samples selected in accordance with 4.3.1 shall be
examined to verify that the design, construction, physical dimensions, and workmanship are in
accordance with this specification. Each reel of cable shall be supplied with diameter recordings
specified in 4.4.1.
4.4 Test procedures.
4.4.1 Dimensions and out-of-round. The overall diameter of the outer jacket shall be measured. The
cable making equipment shall be fitted with electronic or mechanical measuring device(s) to produce
graphic records of the cable produced. Two recordings shall be made as nearly simultaneously as
possible of each diameter, 90 degrees apart, and at a point in manufacturing where further dimensional
changes such as cooling, tension, and so forth will not occur. The recordings shall be permanent and
reproducible by a common commercial process. The recording accuracy shall be no less than 5% of the
tolerance being measured, and any portion of the recording of the O.D. shall be identifiable to within ± 2
feet (.6 m) of the cable being measured and not less than 0.05 of an inch (1.27 mm) of paper per each 1
foot (305 mm) of cable being monitored. Each recording shall be identified with the reel of cable being
monitored. The beginning of the cable length and end of the cable run shall be indicated on the
recordings.
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