performance wire

Monday, February 08th 2010

CABLE CONSTRUCTION - PERFORMANCE

M27500

-

22

SB

2

T

23

Our Mil-spec cables are designated by alphanumeric codes indicating construction. Please use our color-coded key to familiarize yourself with our ordering procedure.

Specification
All mil-spec wire starts with the letter M.

Shielded Coverage and Color Identification
A dash (-) or letter code indicates both shielding coverage and the method of color identification of primary core insulation as detailed in Table A. The example indicates 85% and white primaries with colored stripes.
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Basic Wire Specification
The component wires are identified by a two-letter code as detailed in Table B..

Shield
The specific shield style and material are designated by a single-letter code, detailed in Table C.

Jacket
Cable jacketing materials are specified with a two-digit code, detailed in Table D.

TABLE A - SHIELDED COVERAGE AND COLOR IDENTIFICATION CODES
Identification method of cable (with 85% shield coverage)	Statement taken from M27500	Whitmor/Wirenetics description of the requirement from M27500
-	Preferred identification method using Table III A	All wires are colored white with spiral stripes for identification
A	Optional identification method A, Table III A	All solid colors are used instead of white striped wires.

TABLE B - ALPHANUMERIC-BASED DESCRIPTION				M27500
Base Specification	M27500	Description	Wire AWG	Temp Rating
TG	Mil-W-22759/18	Single Insulation, Tin-plated Copper	26-12	150°C
SB	Mil-W-22759/32	Single Insulation, Tin-plated Copper	30-12	150°C
SC	Mil-W-22759/33	Single Insulation, Silver-plated, High-Strength Copper Alloy	30-20	200°C
SR	Mil-W-22759/44	Single Insulation, Silver-plated Copper	28-12	200°C
SX	NA	Single Insulation, Silver-plated, Ultra High-Strength Copper Alloy	-	-

TABLE C - SHIELD LETTER CODE
Shield	Description	Temperature Rating
U	No Shield	-
T	Round, Tin-plated Copper	150°C
S	Round, Silver-plated Copper	200°C
G	Flat, Silver-plated Copper	200°C

TABLE D - JACKET NUMBER CODES
Jacket	Description Temperature	Rating
00	No Jacket	-
06	Tapered and heat sealed white polytetrafluoroethylene (PTFE)	260°C (500°F)
09	Extruded white fluorinated ethylene propylene (FEP)	200°C (392°F)
14	Extruded white ethylene tetrafluoroethylene copolymer (ETFE)	150°C (302°F)
23	White, crosslinked, extruded, modified ethylene-tetrafluoroethylene copolymer (XLETFE)	200°C (392°F)