MIL-DTL-21248C
3.5.2.1.5 Type I, Class 5 retaining rings. Type I, Class 5 retaining rings shall be similar to
Figure 5 and shall conform to the hardness requirements and the dimensions of MS16633 and the
supplementary dimensions of Table V.
FIGURE 5. Type I, Class 5 Retaining Rings.
TABLE V. Supplementary Dimensions, Type I, Class 5 and Type II, Class 3 Retaining Rings.
V 1/
Q
F
J
L
M
N
C 1/
Nominal
(Free gap) (Free dia)
(ref)
(ref)
Ring Size
(Inch)
(Inch)
(Inch)
(Inch)
Degree Degree (Inch)
(Inch)
Inch mm Basic Tol
Max
Basic Tol
Basic Tol
Nom
Nom
Max
Max
0°
.040
1.0
.022
+.002
.082
.012
.015
.005
.003
.062
1.55
.046
-.004
.159
.022
±.002
.016
±.003
.094
2.4
.066
.192
.022
.019
.110
2.8
.066
.213
.026
.040
.009
+.003
.125
3.2
.085
.235
.030
.029
-.007
±005
.140
3.6
.092
.275
.038
.032
±.003
.156
4.0
.098
.287
.033
.035
.172
4.3
.109
.317
.040
.038
+.005
.188
4.8
.125
.340
.042
.038
.005
-.010
±.010
.013
.219
5.6
.159
.442
.045
.057
10°
.250
6.4
.179
.534
.055
.064
30°-36°
.312
7.9
.210
.607
.057
.075
±.004
.375
9.5
.259
.667
.060
.093
+.007
.438
11.1
.291
.694
.062
.104
-.014
±.015
.025
.008
.500
12.7
.339
.810
.080
.121
.034
.625
15.9
.416
.950
.090
.148
±.005
±.020
.744
18.9
.497
1.010
.100
.160
.750
19.0
.497
+.010 1.130
.110
.177
.875
22.2
.578
-.017 1.310
.120
.206
.048
.012
±.006
.984
25.0
.712
1.510
.130
.254
±.030
1.188 30.2
.923 +.020 1.640
.130
.329
.054
1.375 34.9
1.050 -.030 1.889
.140
.375
1/ See Table XI and Figure 12.
15
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