MIL-STD-681-SUP Identification Coding and Application of Hookup and Lead WireThis standard establishes identification coding systems for all insulated hookup and lead wire used in electrical and electronic equipment by the Departments of the Army, Navy, and Air Force. These coding systems should also be used for identifying lead wires on Hall generators and ac and dc wire coding methods specified see 4.9 and 4.10.

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5.6

System VI - Differential color coding for high density chassis and interconnecting wiring (see

1.2)

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5.6.1

Method of color coding

10

5.6.2

Circumferential banding

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5.6.2.1

Identification numbers

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5.6.2.2

Color sequence of circumferential bands

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5.6.3

Wire markers

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5.7

Striping or banding

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5.7.1

Colored helical stripes or circumferential bands

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5.7.2

Sequence

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5.7.2.1

Stripe or band width

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5.7.2.2

Stripe or band spacing

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5.7.2.3

Length of lay (spacing between groups)

12

5.7.2.4

Spacing between groups of bands

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5.8

Braided wire covering

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6.

NOTES

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6.1

Intended use

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6.2

Subject term (keyword) listing

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6.3

International standardization agreements

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6.4

Changes from previous issue

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TABLES I.

Preferred color sequence for single wires

4

II.

Colors for chassis and interconnection wiring system by function

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III.

IV.

V.

DC power color coding for chassis and interconnection wiring (optional method)

Color coding for ac power wiring (100 V and greater) for single and three phase systems

Printing type size of identification marking

8

8

11