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MIL-DTL-27500 Cables—color coding

MIL-DTL-27500 Color Coding

Color coding for MIL-DTL-27500 cables is speciﬁed in conjunction with desired shield coverage:

Color Code for Shield Coverage of:

85%

90%

MIL-DTL-27500 terminology

Component wire identiﬁcation method

“–”

Preferred method, Table III A

White wires with colored stripes —stripe color per Table III A.

Preferred method, Table III B

White wires with colored stripes —stripe color per Table III B.

Optional method A, Table III A

Solid color wires—colors per Table III A.

Optional method A, Table III B

Solid color wires—colors per Table III B.

Optional method B, Table III C

Wires are all the same color (based on AWG size), per Table III C.

Bands of a contrasting color are printed on each wire to denote

wire number (circuit ID) per Table III D.

Optional method C

Wires are all the same color (based on AWG size), per Table III C.

Numbers in a contrasting color are printed on each wire to denote

wire number (circuit ID).

Optional method D

White wires with numbers in a contrasting color printed on each

wire to denote wire number (circuit ID).

Table III A Color Coding

•

For “preferred method” color coding, colors are stripes on white insulation (wire #1 has no stripe).

Wires 11–15 have double stripes as indicated.

•

For “optional method A” color coding, colors are solid insulation color. Wires 11–15 have a stripe in a lighter shade of the base color.

Wire Number

White Blue Orange Green Red Black Yellow Violet Gray Brown Blue/Blue Orange/Orange Green/Green Red/Red Black/Black

Table III B Color Coding

•

For “preferred method” color coding, colors are stripes on white insulation (wire #5 has no stripe), for wires 1–10.

For wires 11–15, color pairs indicate insulation of the ﬁrst color, with a stripe of the second color.

•

For “optional method A” color coding, colors are solid insulation color, for wires 1–10.

For wires 11–15, color pairs indicate insulation of the ﬁrst color, with a stripe of the second color.

•

For either method the color of the wire in a one-conductor cable is white.

Wire Number

Red

Blue Yellow Green White Black Brown Orange Violet Gray Red/White Blue/White Yellow/White Green/White Black/White

Table III C Color Coding

•

For “optional method B” color coding, wire insulation color is

based on AWG size, with color bands per Table III D to indicate

wire number (circuit ID).

•

For “optional method C” color coding, wire insulation color

is based on AWG size, with numbers printed on each wire to

indicate wire number (circuit ID).

Table III D Color Band Conﬁguration

•

For “optional method B” color coding, band groups as shown

below are printed on wires to indicate wire number (circuit ID).

AWG size

Color

Black

Blue

Green

Red

White

Blue

Green

Yellow

AWG size

Color

Brown

Red

Blue

Yellow

Red

White

Blue

Green

Wire number

Band conﬁguration

None

2 narrow

3 narrow

4 narrow

5 narrow

6 narrow

7 narrow

1 wide, 1 narrow

1 wide, 2 narrow

1 wide, 3 narrow

1 wide, 4 narrow

1 wide, 5 narrow

2 wide, 1 narrow

2 wide, 2 narrow

2 wide, 3 narrow

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