INCH-POUND
MIL-DTL-24643/57F
1 October 2009
SUPERSEDING
MIL-DTL-24643/57E
22 August 2002
DETAIL SPECIFICATION SHEET
CABLE, ELECTRICAL, -20 °C TO +90 °C, TYPE LS2UW
(INCLUDING VARIATION LS2UWS)
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.
This cable can be manufactured in two variations: LS2UW and LS2UWS (double overall shield).
Construction, Watertight
First
Copper conductor, tin-coated, 26 AWG, 7 strands, ASTM B286.
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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 0.010 inch; wall thickness may vary from
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nominal as necessary, in order for completed cable to meet the specified electrical
requirements. Telephone identification code shall be applied by Method 3.
Fourth
Two conductors cabled together with a nominal lay of 1½ inches to form a pair.
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Fifth
Forty-two pairs cabled together with a lay in accordance with 3.4.4 of MIL-DTL-24643.
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Cabling sequence shall be consecutive, starting with no. 1 from the center outward.
Fillers may be used as necessary to form a firm, well-rounded assembly.
Sixth
An optional binder.
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Seventh
Braided shield of tin-coated copper.
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Construction, Variant for Type LS2UW
Eighth
An optional binder.
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Ninth
Cross-linked polyolefin jacket. Minimum average wall thickness of 0.065 inch. Overall
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cable diameter shall be 0.750 inch minimum, 0.790 inch maximum.
Construction, Variant for type LS2UWS
Eighth
Spirally-wrapped polyethylene terephthalate (polyester film) separator tape.
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Ninth
Braided shield of tin-coated copper.
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Tenth
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An optional binder.
AMSC N/A
FSC 6145
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