MS16630C
REQUIREMENTS:
1. CLASSIFICATION: RETAINING RINGS FURNISHED UNDER THIS STANDARD SHALL BE TYPE III, CLASS 2 OF THE PROCUREMENT SPECIFICATION.
2. MATERIAL:
(a) CARBON SPRING STEEL,GRADE 1060 THRU 1095 (UNS G10600 THRU G10950) IN ACCORDANCE WITH ASTM A568/A568M OR ASTM A684/A684M.
(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.
0SHAFT (REF) |
CARBON STEEL |
CORROSION RESISTANT STEEL |
BERYLLIUM COPPER |
1.000 TO 1.023 INCL |
47-53 HRC |
44-51 HRC |
56.5-62 HR30N |
1.062 TO 3.437 INCL |
47-52 HRC |
44-51 HRC |
37-43 HRC |
3.500 AND OVER |
45 TO 50 HRC |
44-51 HRC |
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4. PROTECTIVE FINISH OR TREATMENT:
(a) CARBON STEEL - SHALL BE AS SPECIFIED (SEE TABLE III OR IV):
(1) CADMIUM PLATE IN ACCORDANCE WITH SAE AMS-QQ-P-416, TYPE II, CLASS 3 OR ASTM B696, TYPE II, CLASS 5. (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 II.
(b) CORROSION RESISTANT STEEL - SHALL BE CLEANED, DESCALED AND PASSIVATED IN ACCORDANCE WITH SAE AMS2700.
5. PART NUMBER: THE BASIC MS PART NUMBER IS FOLLOWED BY A DASH NUMBER TAKEN FROM TABLE III AND IV.
EXAMPLE: MS16630-1100 IS THE PART NUMBER FOR A CARBON STEEL, CADMIUM PLATED, EXTERNAL, BEVELED RETAINING RING FOR USE IN A 1.000 DIAMETER SHAFT.
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