INCH-POUND
MIL-DTL-24640/21E
8 November 2011
SUPERSEDING
MIL-DTL-24640/21D
22 August 2002
DETAIL SPECIFICATION SHEET
CABLE, ELECTRIC, -20 TO +105 °C, 600 VOLTS, LIGHTWEIGHT, FOUR-CONDUCTOR, LOW POWER,
TYPE FXW (INCLUDING VARIATION TYPE FXOW)
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-24640.
Construction (Watertight with Circuit Integrity)
First
Copper conductor, coated or uncoated in accordance with ASTM B8, 7 strands in
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Second
Mica glass tape insulation 0.0029±0.0002 inch (50 percent overlap maximum and
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minimum overlap of 45 percent). Conformance testing shall be in accordance with
MIL-DTL-81381 prior to cabling.
Third
Opaque-pigmented polyimide tape 0.001 inch (50 percent overlap minimum).
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Fourth
Opaque-pigmented polyimide 0.001 inch with 0.0001 inch Fluorinated Ethylene
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Propylene (FEP) tape (50 percent overlap minimum).
Fifth
Modified aromatic polyimide resin coating 0.0005 inch minimum (0.001 inch nominal).
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Identification codes applied using Method 1 or 3.
Construction Variant for Type FXW
Sixth
Four component wires shall be cabled together. Fillers may be used, as necessary, to
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form a round cable.
Seventh
Optional binder tape.
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Eighth
Cross-linked polyolefin jacket (see table I for thickness).
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NOTE: Manufacturer's identification tape or thread is required (see 3.7.3).
Construction Variant for Type FXOW
Eighth
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Braided shield, tin-coated copper strands. Braid must be constructed to meet surface
transfer impedance requirements as listed herein.
Ninth
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Optional binder tape.
Tenth
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Cross-linked polyolefin jacket (see table II for thickness).
NOTE: Manufacturer's identification tape or thread is required (see 3.7.3).
AMSC N/A
FSC 6145
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