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Insulation, Heat Shrinkable Sleeving (Shrink, Tubing), and Cable Straps
Heat shrinkable sleeving is intended for use as a snug-fitting electrical insulator. It is used to insulate
wire bundles, splices, bus bars, connectors, terminals, metal, or fibrous tubing. It is also used as extra
insulation over hotspot areas and as a cable blast shield in rocket launchings. Heat shrinkable sleeving is
found under Military Specification I-23053C (MIL-1-23053C). Part numbers under this military
specification are coded as follows:
Color code designations are:
DESIGNATOR
COLOR
DESIGNATOR
COLOR
0
Black
7
Violet (Purple)
1
Brown
8
Gray (Slate)
2
Red
9
White
3
Orange
C
Clear
4
Yellow
P
Pink
5
Green
T
Tan
6
Blue
The particular uses for heat shrinkable sleeving depend on the specific properties described by the
individual specification sheet. Intended uses are indicated below:
