MIL-DTL-21248C
FIGURE 1. Type I, Class 1 Retaining Rings.
TABLE I. Supplementary Dimensions All Class 1 Retaining Rings.
V 1/
K
P
C 1/
Nominal Ring Size
(Free gap)
(Inch)
(Inch)
(Inch)
(Inch)
Inch
mm
Basic
Tol
Basic
Tol
Max
Max
.250
6.4
.080
.031
.009
.005
.312
7.9
.100
.031
.009
.005
.375
9.5
.120
.041
.011
.005
.438
11.1
.145
.041
.012
.005
.453
11.5
.145
.047
.012
.005
.500
12.7
.155
+.040
.047
.012
.008
.512
13.0
.160
-.025
.047
.012
.008
.562
14.3
.175
.047
.015
.008
.625
15.9
.205
.062
.017
.008
.688
17.5
.230
.062
+.010
.018
.008
-.002
.750
19.0
.250
.062
.020
.008
.777
19.7
.260
.062
.021
.010
.812
20.6
.273
.062
.022
.010
.866
22.0
.297
.062
.023
.010
.875
22.2
.301
.062
.023
.010
+.050
.901
22.9
.312
.062
.024
.010
-.035
.938
23.8
.329
.062
.025
.010
1.000
25.4
.355
.062
.027
.010
1.023
26.0
.365
.062
.028
.010
1.062
27.0
.370
.078
.028
.010
1.125
28.6
.400
.078
.030
.012
1.181
30.0
.425
.078
.031
.012
1.188
30.2
.425
.078
.031
.012
+.090
+.015
1.250
31.7
.450
.078
.035
.012
-.065
-.002
1.259
32.0
.450
.078
.035
.012
5
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