MS90707 Ring, Retaining, External Grip

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MS90707C

REQUIREMENTS:

1. CLASSIFICATION:  RETAINING RINGS FURNISHED UNDER THIS STANDARD SHALL BE TYPE I, CLASS 7 OF THE PROCUREMENT SPECIFICATION.

2.  MATERIAL:

(a)  CARBON SPRING STEEL, GRADE 1060 THRU 1095 (UNS G10600 THRU G10950) IN ACCORDANCE WITH ASTM A 568/A568M OR ASTM A684/A684M.

(b)  CORRISION RESISTANT STEEL, IN ACCORDANCE WITH SAE 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.

4. PROTECTIVE FINISH OR TREATMENT:

(a).  CARBON STEEL - SHALL BE (SEE TABLE Ill OR IV)

(1)  CADMIUM PLATE IN ACCORDANCE WITH SAE AMS-QQ-P-416, TYPE II, CLASS 3 OR ASTM B 696, TYPE II, CLASS 5.

(2)  ZINC COAT IN ACCORDANCE WITH ASTM B633, TYPE II, CLASS Fe/Zn 5 OR ASTM B 695, 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 Ill OR IV.

EXAMPLE:  MS90707-1025  IS THE PART NUMBER FOR A CARBON STEEL, CADMIUM PLATE, EXTERNAL GRIP, RETAINING RING FOR USE ON A .250 DIAMETER SHAFT.

TABLE III.  DASH NUMBERS FOR MS90707

1/ SUBSTITUTE  CORROSION RESISTANT STEEL WHEN USED IN FOOD PROCESSING MACHINERY, OR IN FUEL OR

LUBRICATION SYSTEMS, OR WHEN USED AT TEMPERATURES  OVER 450°F (233°C).

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