INCH-POUND
MIL-DTL-24640/5E
8 November 2011
SUPERSEDING
MIL-DTL-24640/5D
22 August 2002
DETAIL SPECIFICATION SHEET
CABLE, ELECTRIC, -20 TO +105 °C, 600 VOLTS, LIGHTWEIGHT, MULTI-PAIR, 20 AWG,
TYPES TTXS OR TTXSW (INCLUDING VARIATION TYPE TTXSO OR TTXSOW)
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, Non-Watertight (TTXS or TTXSO) and Watertight (TTXSW or TXSOW)
First
19-strand, tin-coated copper conductor, 20 AWG. Watertight constructions shall be
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constructed with 7 strands.
Second
Component wires shall be SAE-AS81044/12, except identification shall be in accordance
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with the codes and methods of MIL-DTL-24640. Testing shall be done in accordance
with the component wire ratings and requirements listed on this specification sheet.
Conformance testing shall be in accordance with SAE-AS81044 prior to cabling.
Third
Two component wires, one black and one white, shall be twisted together to form the
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required number of pairs. The pitch shall be 1±¼ inch.
Fourth
Optional binder tape.
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Fifth
Braided shield of 38 AWG tin-coated copper strands. Braid coverage shall be no less
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than 90 percent determined in accordance with WC-27500.
Sixth
Shield insulation of two polyester tapes or polyester tape and extruded jacket.
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Identification codes applied using Method 2.
Seventh
The required number of shielded, twisted pairs shall be cabled together. Cabling
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sequence shall be consecutive, starting with shielded pair number 1 from center outward.
Fillers may be used, as necessary, to form a round cable.
Eighth
Optional binder tape.
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Construction Variant for Type TTXS or TTXSW
Ninth
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 TTXSO or TTXSOW
Ninth
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Braided shield, tin-coated copper strands. Braid must be constructed to meet surface
transfer impedance requirements as listed herein.
AMSC N/A
FSC 6145
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