MIL-DTL-83140B
3.3.1 Broken wires. Broken wires or protruding wires shall be considered defects and
shall be cause for rejection of any length of wire rope.
3.4 Construction, dimensions, and physical properties. The types of construction for the
respective diameter, the dimensional tolerances, and the physical properties shall be as specified
in table I.
3.5 Types of construction. The wire rope covered by this specification shall be of 19 x 7
rope as specified in table I.
3.5.1 Type I, 19 x 7 construction (see figure 1). Wire rope of this construction shall
consist of one core of 7 strands of 7 wires each for a total of 49 wires and an outer layer of 12
strands of 7 wires each for a total of 84 wires. The inner core shall be left lang lay (see 6.4.2.1).
The outer layer shall be right regular lay (see 6.4.2.2). The total number of wires in the wire rope
shall be 133.
3.5.1.1 Length of lay. The length of lay (see 6.4.2.3) of the inner core shall be not less
than five times, nor more than six times, the diameter of the inner core. The length of lay of the
outer layer shall be not less than six times, nor more than seven times, the diameter of the
finished wire rope.
3.5.2 Type II, 10 x 7 (7 x 19 IWRC) construction (see figure 2). Wire rope of this
construction shall consist of:
a. Core: 7 x 19 wire rope consisting of 7 strands of 19 wires each for a total of 133 wires
laid right regular lay (see 6.4.2.2).
b. Outer layer: 10 x 7 construction consisting of 10 strands of 7 wires each for a total of
70 wires laid around the core left regular lay (see 6.4.2.2).
3.5.2.1 Length of lay. The length of lay (see 6.4.2.3) of the 7 x 19 core shall be not less
than six times, nor more than eight times, the diameter of the core. The length of lay of the 10 x
7 outer layer shall be not less than six times, nor more than eight times, the diameter of the
finished wire rope.
3.6 Lubrication. Unless otherwise specified, each wire of the wire rope shall be coated
with a friction-preventive, non-corrosive lubricant. If suitable, bio-based lubricants are
preferred. At a minimum, the lubricant shall operate at temperatures from -65 °F to 160 °F (-54
°C to 71 °C).
3.7 Temperature conditions. The wire rope, including lubricant, shall be capable of
performing satisfactorily and shall be able to meet all the requirements of this specification
throughout a temperature range of -65 °F to 160 °F (-54 °C to 71 °C).
without failure of any wire.
5
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business