MIL-DTL-21248C
3.5.2.2 Type II retaining rings. Type II retaining rings shall be bowed (not flat) and shall
conform to the requirements of 3.5.2.2.1 through 3.5.2.2.4 and 3.5.4 as applicable.
3.5.2.2.1 Type II, Class 1 retaining rings. Type II, Class 1 retaining rings shall be similar to
Figure 1 and shall conform to the hardness requirements and the dimensions of MS16629 and the
supplementary dimensions of Table I.
3.5.2.2.2 Type II, Class 2 retaining rings. Type II, Class 2 retaining rings shall be similar to
Figure 2 and shall conform to the hardness requirements and the dimensions of MS16628 and the
supplementary dimensions of Table II.
3.5.2.2.3 Type II, Class 3 retaining rings. Type II, Class 3 retaining rings shall be similar to
Figure 5 and shall conform to the hardness requirements and the dimensions of MS16634 and the
supplementary dimensions of Table V.
3.5.2.2.4 Type II, Class 4 retaining rings. Type II, Class 4 retaining rings shall be similar to
Figure 11 and shall conform to the hardness requirements and the dimensions of MS3216.
FIGURE 11. Type II, Class 4 Retaining Rings.
3.5.3 Type III retaining rings. Type III retaining rings shall be flat (not bowed) in the same plane
within limits of 3.5.4.5 and shall conform to the requirements of 3.5.3.1, 3.5.3.2 and 3.5.4 as
applicable.
3.5.3.1 Type III, Class 1 retaining rings. Type III, Class 1 retaining rings shall be similar to
Figure 1 and shall conform to the hardness requirements and the dimensions of MS16631 and the
supplementary dimensions of Table I.
3.5.3.2 Type III, Class 2 retaining rings. Type III, Class 2 retaining rings shall be similar to
Figure 2 and shall conform to the hardness requirements and the dimensions of MS16630 and the
supplementary dimensions of Table II.
3.5.4 Design and irregularity limitations.
3.5.4.1 Face contour design parameters. Figure 12 shows the cross section details and Table
XI relates these details to the various retaining ring designs with their corresponding dimensional
tables in the text. The "C" dimension shown in Figure 12 appears in the various ring dimensional
tables in the text. The angle "θ" shown in Figure 12 shall not exceed 10º maximum.
22
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business