INCH-POUND
MIL-DTL-24643/38F
1 October 2009
SUPERSEDING
MIL-DTL-24643/38E
22 August 2002
DETAIL SPECIFICATION SHEET
CABLE, ELECTRICAL, -20 °C TO +90 °C, 600 VOLTS, TYPE LSECM
This specification is approved for use by all Departments and Agencies of the Department of Defense.
The requirements for acquiring the product described herein shall consist of this specification sheet and
MIL-DTL-24643.
Construction, Watertight
Component 1: 8 shielded pairs
First
Copper conductor, tin-coated, in accordance with ASTM B286, 20 AWG 7 strands.
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Second
Separator may be used at manufacturer's option where required to provide free-stripping
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insulation.
Third
Thermoset insulation. Nominal wall thickness of 0.023 inch; wall thickness may vary
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from nominal as necessary, in order for the completed cable to meet the specified
electrical requirements. Colored insulation, one white and one black conductor for each
pair.
Fourth
Two conductors (one black and one white) cabled together with a nominal lay of 2.5
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inches to form a pair.
Fifth
An optional binder.
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Sixth
Braided shield of 34 or 36 AWG, tin-coated copper. Braid angle of 20 to 40 degrees;
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minimum coverage of 85 percent.
Seventh
Shield insulation of two polyester tapes, outer tape sealed. An alternate shield insulation
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may consist of one polyester tape, plus an extruded jacket of a suitable transparent
material, minimum average thickness of the transparent material 0.003 inch. The
standard identification code shall be applied by Method 2.
Component 2: 8 group (seven conductors in each)
First
Copper conductor, coated or uncoated, 18 AWG, Class B stranding (7 by 0.0152 inches).
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Maximum diameter of 0.050 inch.
Second
Thermoset insulation. Nominal wall thickness of 0.008 inch. Colored insulation, five
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black and two white conductors for each group.
Third
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Seven conductors, five black and two white, with the white conductors adjacent in the
layer of six, cabled with a lay not greater than 2 inches, to form each group.
AMSC N/A
FSC 6145
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