MIL-PRF-62540A(AT)
Length
Centimeters (cm) [in.]
Tolerances cm [in.]
(-0, + 1.27) [-0, + 0.5]
(0 to 30) [0 to 11.9]
(30.5 to 182.6) [12 to 71.9]
(-0, + 2.54) [-0, + 1.0]
(182.6 and up) [72 and up]
(-0, + 5)
[-0, + 2.0]
3.3.4 Radio frequency interference (RFI) shielding. The RFI shielding shall eliminate radio
frequency interference (see 4.6.1 and 4.6.2).
3.3.4.1 Electromagnetic radiation (EMR). The harness and cable assemblies shall have
EMR antenna characteristics. Changes made to the identification or the design of connectors, RF,
or audio shields from those specified on the applicable harness or cable drawing and associated
hardness assurance must be approved by the acquisitioning activity responsible for nuclear
hardening and EMR protection (see 4.6.2).
3.3.4.2 Harness terminations. The harness terminations shall be as shown in figures 3 and
5 or as specified on the applicable harness or cable assembly drawing. Terminating adapters, boots
and jacketing shall be fully covered and watertight with no cracks, splits or abrasions. In cases
where a boot is not specified on the drawing, a piece of heat shrinkable tubing shall be substituted.
The length of this tubing shall be not less than 15.24 cm (6 in.). Harness terminations shall be
designed to permit exposure of 5.1 cm (2 in.) of wire at connectors and transitions (see 4.6.2).
3.3.4.2.1 Cable terminating adapters. The adapters shall have anti-rotation features to
prevent rotation of the adapter body with respect to the connector (such features shall not preclude
component removal to accomplish cable repair). The adapter diameter shall not exceed the mating
connector (see 4.6.2).
3.3.4.3 Harness jacketing. All harness branches shall be covered with the jacketing
specified on the harness drawing. When optional jacketing material is specified, each individual
harness branch shall be completely covered with one option only. The jacketing shall extend into
the boot or transition as specified in figures 2, 3 and 5, depending on the application. The
jacketing shall be a flexible convoluted tubing. The convolution may be helical or annular.
Bonding of jacket points to their mating parts shall provide a watertight joint (see 4.6.1 and 4.6.2).
3.3.4.3.1 Heat shrinkable tubing. The heat shrinkable tubing shall be uniformly shrunk to
minimum diameters, determined by the bundle size, with no evidence of cracks, splits, or abrasions.
Multiple sections of tubing may be used on long harness branches, provided each individual length
5
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business