MS16628 Ring, Retaining, External, Bowed Tapered Section Type

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MS16628C

REQUIREMENTS:

1. CLASSIFICATION: RETAINING RINGS FURNISHED UNDER THIS STANDARD SHALL BE TYPE II, 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).

3. HARDNESS:

TABLE II. HARDNESS.

0SHAFT (REF)	CARBON STEEL	CORROSION RESISTANT STEEL	BERYLLIUM COPPER
.188 TO .236 INCL	-	-	77.9-82.0 HR15N 1/ (39-43 HRC EQUIV)
.250 TO .551 INCL	85.5-87.9 HR15N 1/ (50-55 HRC EQUIV)	83.5-85.9 HR15N 1/ (46-51 HRC EQUIV)	77.9-82.0 HR15N 1/ (39-43 HRC EQUIV)
.562 TO .669 INCL	68.5-73.0 HR30N 1/ (50-55 HRC EQUIV)	64.8-69.4 HR30N 1/ (46-51 HRC EQUIV)	58.6-62.2 HR30N 1/ (39-43 HRC EQUIV)
.688 TO 1.500 INCL	52.5-58.6 HR45N 1/ (48-53 HRC EQUIV)	50.3-56.1 HR45N 1/ (46-51 HRC EQUIV)	41.9-46.7 HR45N 1/ (39-43 HRC EQUIV)

1/ USE HIGHEST SCALE TO PROVIDE SECTION WIDTH EQUAL TO OR GREATER THAN 5 TIMES THE BRAILE IMPRESSION DIAMETER.

4. PROTECTIVE FINISH OR SURFACE 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/Zn 5 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.

5. PART NUMBER: THE BASIC MS PART NUMBER IS FOLLOWED BY A DASH NUMBER TAKEN FROM TABLE III AND IV.

EXAMPLE: MS16628-1100 IS THE PART NUMBER FOR A CARBON STEEL, CADMIUM PLATE, EXTERNAL, BOWED RETAINING RING FOR USE IN A 1.000 DIAMETER SHAFT.