MIL-DTL-18375H
and/or jacketing material, changes in the lubricant application process, etc.) for requalification
testing determinations.
3.2 Materials.
3.2.1 Steel. Corrosion resistant steel UNS S30500 in accordance with SAE HS-1086
shall be used.
3.2.2 Lubricant. Each wire of the wire rope shall be coated with a friction-preventive,
non-corrosive lubricant. As a minimum, the lubricant shall operate at temperatures from
-65 °F to +250 °F (-54 °C to +121 °C). Any change in lubricant is considered a major process
change and may require requalification testing (see paragraph 3.1).
3.3 Construction.
3.3.1 Wire. The wire (see 6.4.14) used in steel wire rope shall be cylindrical, smooth
and of uniformly high quality.
3.3.1.1 Wire properties. Tensile strengths of wire and wire sizes shall be such that wire
rope will be capable of meeting the requirements of this specification.
3.3.1.2 Preforming (see 6.4.9) of wires and strands. The individual wires and strands
composing the wire rope shall be shaped into the exact helical position they will have in the
finished wire rope, so that if the wire rope is cut or severed there is no tendency for the measured
diameter (see 6.4.3) of the wire rope at the unseized cut ends to increase by more than the
amount specified in table I.
3.3.1.3 Splicing and joining. All splices or joints in wires less than 0.008 inch may be
longitudinally twisted, but all wire sizes of 0.008 inch or more shall be brazed or welded. Any
joints in individual wires in any layer of a strand (see 6.4.12) shall not be closer than 20 feet
except as specified in 3.3.1.3.1.
3.3.1.3.1 Twist-off. When a twist-off (see 6.4.13) occurs during fabrication of the 7-wire
layer of a 19-wire strand (see 3.3.1.3), splices and joints in individual wires may be as close as
18 inches.
3.3.2. Wire rope lengths. The wire rope shall be furnished on reels in lengths specified
by the procuring activity. There will be no more than two pieces of wire rope on the reel. The
shortest piece shall be a minimum of 20 percent of the reel length. The distance to the break
point on the reel shall be marked on the reel and package.
3.3.3 Wire rope construction. Flexible steel wire rope shall be 7 x 7 or 7 x 19
construction and shall be regular lay (see 6.4.10) for the respective diameters, the dimensional
tolerances, and the physical properties as specified in table I.
3
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business