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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
TABLE I. Construction, physical properties of type I, carbon steel and corrosion resistant steel wire.
Allowable
Tolerance
Minimum
Nominal rope
Construction
MBS
MBS
Approximate
increase of
on diameter
rope
diameter of wire
composition A
composition B
weight
diameter at
(plus only)
diameter
(reference)
per 100 ft.
cut end 1/
of wire
in.
in.
in.
in.
lbs.
lbs.
lbs.
0.16
110
110
3x7
0.006
0.006
0.031
1/32
0.42
270
270
7x7
0.008
0.008
0.046
3/64
0.75
480
480
7x7
0.009
0.010
0.062
1/16
0.75
480
480
7 x 19
0.009
0.010
0.062
1/16
1.60
920
920
7x7
0.010
0.012
0.093
3/32
1.74
920
1,000
7 x 19
0.010
0.012
0.093
3/32
2.90
1,760
2,000
7 x 19
0.011
0.014
0.125
1/8
4.50
2,400
2,800
7 x 19
0.017
0.016
0.156
5/32
6.50
3,700
4,200
7 x 19
0.019
0.018
0.187
3/16
8.60
5,000
5,600
7 x 19
0.020
0.018
0.218
7/32
11.00
6,400
7,000
7 x 19
0.021
0.018
0.250
1/4
13.90
7,800
8,000
7 x 19
0.023
0.020
0.281
9/32
17.30
9,000
9,800
7 x 19
0.024
0.022
0.312
5/16
24.30
12,000
14,400
7 x 19
0.027
0.026
0.375
3/8
1/ The allowable increase in diameter shall be applied to the actual diameter of the wire rope being tested.
TABLE II. Construction and dimensional properties of type II wire rope jacket tolerance.
Jacket wall thickness
Approximate weight
Construction
Outside diameter
Tolerance on
Nominal
(reference)
per 100 ft.
(O.D.) of jacket
jacket O.D.
diameter of
(plus only)
wire rope
in.
in.
in.
in.
lbs.
0.22
0.008
0.008
0.046 (3/64)
3x7
1/32
0.49
0.008
0.010
0.062 (1/16)
7x7
3/64
0.76
0.016
0.012
0.078 (5/64)
7x7
3/64
0.93
0.016
0.012
0.093 (3/32)
7x7
1/16
1.18
0.031
0.014
0.125 (1/8)
7x7
1/16
0.93
0.016
0.012
0.093 (3/32)
7 x 19
1/16
1.18
0.031
0.014
0.125 (1/8)
7 x 19
1/16
1.85
0.016
0.014
0.125 (1/8)
7x7
3/32
2.18
0.031
0.016
0.156 (5/32)
7x7
3/32
1.99
0.016
0.014
0.125 (1/8)
7 x 19
3/32
2.32
0.031
0.016
0.156 (5/32)
7 x 19
3/32
3.62
0.031
0.018
0.187 (3/16)
7 x 19
1/8
6.10
0.031
0.018
0.218 (7/32)
7 x 19
5/32
7.51
0.063
0.022
0.281 (9/32)
7 x 19
5/32
7.75
0.031
0.018
0.250 (1/4)
7 x 19
3/16
9.20
0.063
0.022
0.312 (5/16)
7 x 19
3/16
9.76
0.031
0.020
0.281 (9/32)
7 x 19
7/32
11.55
0.063
0.024
0.343 (11/32)
7 x 19
7/32
12.30
0.031
0.020
0.312 (5/16)
7 x 19
1/4
14.42
0.063
0.024
0.375 (3/8)
7 x 19
1/4
16.18
0.063
0.024
0.406 (13/32)
7 x 19
9/32
19.80
0.063
0.024
0.437 (7/16)
7 x 19
5/16
27.20
0.063
0.027
0.500 (1/2)
7 x 19
3/8
19



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