MS3216D
Table I. Dimensions. (continued)
REQUIREMENTS:
1. Classification: Retaining rings furnished under this standard shall be Type II, Class 4 of the procurement specification, MIL-R-21248.
2. Material:
(a) Carbon spring steel, grade 1060 thru 1095 (UNS G10600 thru G10950) in accordance with ASTM A684/A684M as applicable or A568/A568M.
(b) Corrosion resistant steel in accordance with AMS 5520 (UNS S15700).
(c) Beryllium copper alloy number 170 (UNS C17000) or alloy number 172 (UNS C17200) in accordance with ASTM B194.
3. Hardness:
TABLE II. Hardness
0 Shaft (Ref) |
Carbon Steel |
Corrosion Resistant Steel |
Beryllium Copper |
.094 to .250 incl .094 to .312 incl .094 to .438 incl .312 to .438 incl .375 and .438 |
83.5-86HR15N 65-69.5HR30N |
82.5-86HR15N 63-69.5HR30N |
77-82HR15N |
4. Protective finish or surface treatment:
(a) Carbon steel - shall be as specified (see table III):
(1) Cadmium plate in accordance with SAE-AMS-QQ-P-416, Type II, Class 3 or ASTM B696, Type II, Class 5 or zinc-nickel plate in accordance with AMS 2417, Type 2.
(2) Zinc coat in accordance with ASTM B633, type II, class Fe/Zn5, or ASTM B695, Type II, Class 5. (3) Phosphate coat in accordance with MIL-DTL-16232, Type Z, Class 2.
(b) Corrosion resistant steel - shall be cleaned, descaled and passivated in accordance with
SAE-AMS2700.
2
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