MIL-STD-681E
iii
1.1
1.2
2.
2.1
2.2
2.2.1
2.2.2
2.3
3.
3.1
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.1.6
3.1.7
4.
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
5.
5.1
5.1.1
5.1.1.1
5.1.1.2
5.1.1.3
5.1.2
5.1.3
5.1.4
5.2
5.2.1
5.2.2
5.2.3
5.3
5.3.1
5.3.2
5.4
5.4.1
5.4.2
5.4.3
5.4.4
5.5
5.5.1
5.5.2
Scope
Classification
APPLICABLE DOCUMENTS
General
Government documents
Specifications, standards, and handbooks
Non-Government publications
Order of precedence
DEFINITIONS
Definitions
Hookup wire
Lead wire
Chassis wiring
Interconnecting wiring
Harness
Homogenous cable
Jacketed cable
GENERAL REQUIREMENTS
Coding of hookup wire
Coding of interconnecting wiring
Abbreviations
Shielded and unshielded wires
Color limits
Clear and neutral colored insulations
Lead wires
Hall generator leads
DC power wiring for chassis and interconnecting systems
AC power wiring in assembled units
DETAIL REQUIREMENTS
System I – Differentiation color coding for chassis wiring (see 1.2)
Standard color code for single wires
Method of color coding
Identification markings
Color sequence of helical stripes or circumferential bands
Harness wiring
Grouping of wires
Termination points
System II – Functional color coding of chassis wiring
Standard colors
Miscellaneous circuits
Direct-coupled circuits
System III – Differentiation or functional coding of chassis wiring by printed markings
Differentiation marking
Functional markings
System IV – Coding of interconnecting wiring
Wire insulation color
Differentiation markings
Interconnecting wiring on aircraft and guided missles
Flat, multiconductor, homogenous cable
System V – Direct wiring and open wiring
Wire insulation color
Differentiation markings
1
1
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
10
10
10
10
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