INCH-POUND
MIL-DTL-24643/42D
1 October 2009
SUPERSEDING
MIL-DTL-24643/42C
22 August 2002
DETAIL SPECIFICATION SHEET
CABLE, ELECTRICAL, -20 °C TO +90 °C, TYPE LS1SU
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, Non-Watertight
First
Copper conductor, tin-coated, ASTM B286, 20 AWG 7 strands and 18 AWG, Class B
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stranding, ASTM B8 (7 by 0.0152 inches). For LS1SU-36, 32 AWG, Size 20 conductors
and 4 AWG, Size 18 conductors. For LS1SU-60, 60 AWG, Size 20 conductors.
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 0.017 inch. Wall thickness may vary
-
from nominal as necessary in order for completed cable to meet the specified electrical
requirements.
Fourth
Braided shield of 34 or 36 AWG, coated or uncoated copper. Braid angle of 30 to 35
-
degrees; minimum coverage of 85 percent.
Fifth
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. For LS1SU-36, the four 18
AWG conductors shall be numbered 1 through 4.
The specified number of singles (see table I) shall be cabled together in accordance with
Sixth
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3.4.4 of MIL-DTL-24643. 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.
Seventh
An optional binder.
-
Cross-linked polyolefin jacket (see table I for thickness).
Eighth
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AMSC N/A
FSC 6145
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