MIL-DTL-21248C
3.5.2.1.6 Type I, Class 6 retaining rings. Type I, Class 6 retaining rings shall be similar to Figure 6
and shall conform to the hardness requirements and the dimensions of MS16632 and the
supplementary dimensions of Table VI.
FIGURE 6. Type I, Class 6 Retaining Rings.
TABLE VI. Supplementary Dimensions, Type I, Class 6 Retaining Rings.
V 1/
Q
J
Z
Y
L
C 1/
Nominal
(Free gap)
Ring Size
(Inch)
(Inch)
(Inch)
(Inch)
(Inch) (Inch)
(Inch)
Inch mm Basic Tol
Basic Tol
Basic Tol
Basic
Tol
Ref
Max
Max
.125
3.2
.096
+.004 .021
.047
+.006
.010
.129
.156
4.0
.122
-.008 .024
±.003
.061
-.010
.015
.163
.009
.005
.188
4.8
.148
.028
.075
.019
.197
.219
5.6
.175
.031
.079
.019
.216
±.005
.236
6.0
.190
.033
.085
.022
.232
.250
6.4
.198
.035
.089
.022
.245
.281
7.1
.229
+.008 .035
.099
.026
.272
±.004
+.008
.013
.005
.312
7.9
.256
-.012 .035
.108
.026
.295
-.013
.375
9.5
.306
.037
.129
.038
.353
.406
10.3
.338
.037
.140
.038
.382
±.010
.438
11.1
.361
.040
.148
.044
.407
.500
12.7
.412
.050
.167
.050
.457
+.010 .050
+.010
.025
.008
.562
14.3
.464
.187
.057
.514
-.015 .052
-.015
.625
15.9
.510
.205
.071
.563
.688
17.5
.564
.054
.225
.079
.613
±.005
+.015 .057
+.012
.750
19.0
.612
.242
.079
.665
±.015
-.020 .060
-.017
.034
.010
.812
20.6
.666
.262
.079
.720
.875
22.2
.720
.062
.284
.080
.780
.938
23.8
.770
.066
.304
.092
.833
±.020
.048
.012
1.000
25.4
.820
.075
.324
.100
.889
16
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