MIL-DTL-83420 Wire Rope, Flexible, For Aircraft Control, General Specification ForThis specification covers the requirements for carbon steel and corrosion resistant steel aircraft control flexible wire rope. Type I wire rope will be capable of operation within a -65 degrees F to +250 degrees F \(-54 degrees C to +121 degrees C\) temperature range in wind, dust, fuel, and oil spills, in wash-down and other environmental stresses and aircraft experiences. Type II wire rope will be capable of operation within a -65 degrees F to +200 degrees F \(-54 degrees C to +94 degrees C\) temperature range in wind, dust, fuel, and oil spills, in wash-down and other environmental stresses and aircraft experiences.

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MIL-DTL-83420M

For dimensions, see

See View "A"

Fr = 1/16 in.

Er = Groove radius, grind to smooth finish

5� � 1/2�

VIEW "A"

Material:

Tool Steel

Heat Treat:

Harden to Rockwell C60 minimum.

NOTES:

1. These dimensions are only reference numbers; these may be varied by the manufacturer.

2. The "A" dimension supports sheaves on suitable ball or roller bearing or shaft extensions supported on suitable

ball or roller bearings.

3. The dimensions of the test sheaves are test parameters only and are by no means intended as design criteria.

FIGURE 2. Test sheaves used in standard endurance test.