MIL-DTL-83420M
TABLE VII. Dimensions of test sheaves ** used in type II endurance test.
Sheave
Outside
C 1/ 2/
G 1/
D
Er
Nominal diameter
Construction
Ratio to 1
Diameter jacket
+1/64
+1/64
+.005
+.002
of wire rope (d)
(O.D.)
(O.D.)
-1/64
-1/64
-.000
-.000
in.
in.
in.
in.
in.
0.036
0.750
3/8
0.938
3/64
16.0
3x7
1/32
0.036
0.750
3/8
0.938
1/16
12.0
7x7
3/64
0.044
0.938
3/8
1.172
5/64
12.0
7x7
3/64
0.052
1.125
3/8
1.405
3/32
12.0
7x7
1/16
0.069
1.500
3/8
1.875
1/8
12.0
7x7
1/16
0.052
0.656
3/8
0.938
3/32
7.0
7 x 19
1/16
0.069
0.875
3/8
1.250
1/8
7.0
7 x 19
1/16
0.069
1.500
3/8
1.875
1/8
12.0
7x7
3/32
0.086
1.875
3/8
2.344
5/32
12.0
7x7
3/32
0.069
0.875
3/8
1.250
1/8
7.0
7 x 19
3/32
0.086
1.094
3/8
1.563
5/32
7.0
7 x 19
3/32
0.102
1.313
3/8
1.875
3/16
7.0
7 x 19
1/8
0.118
2.078
3/8
2.734
7/32
9.5
7 x 19
5/32
0.150
2.671
3/8
3.515
9/32
9.5
7 x 19
5/32
0.134
2.375
1/2
3.125
1/4
9.5
7 x 19
3/16
0.167
2.969
1/2
3.907
5/16
9.5
7 x 19
3/16
0.150
2.671
1/2
3.515
9/32
9.5
7 x 19
7/32
0.184
3.265
1/2
4.296
11/32
9.5
7 x 19
7/32
0.167
2.969
1/2
3.907
5/16
9.5
7 x 19
1/4
0.200
3.562
1/2
4.687
3/8
9.5
7 x 19
1/4
0.215
3.859
1/2
5.078
13/32
9.5
7 x 19
9/32
0.231
4.156
9/16
5.469
7/16
9.5
7 x 19
5/16
0.263
4.750
9/16
6.250
1/2
9.5
7 x 19
3/8
1/ Reference numbers, not a mandatory dimension. Left to manufacturer's discretion.
2/ C=D+3d
** The dimensions of the test sheaves are test parameters only and are by no means intended as design criteria.
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