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National Stock Number:
3110-00-731-2971
Federal Supply Class:
3110
National Item Identification Number:
007312971
Description:
BALL,BEARING
Detail:
A homogenous spherical body, a series of which provides the rolling elements in a BEARING, BALL (as modified). The item is designed primarily to alleviate friction. It may have other usages such as the checking component in a ball-type check valve. Excludes BALL, CHECK; BALL, VALVE, PORTED.
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Manufacturer Information:
| 7312971 | 19200 | US ARMY ARDEC RDECOM | | 7312971 | 19205 | SPRINGFIELD ARMORY |
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Techincal Specification:
| MATERIAL | STEEL COMP 420 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | BALL | | ROLLING ELEMENT DIAMETER | 0.1875 INCHES NOMINAL | | SPECIAL FEATURES | METALLIC HARDNESS RATING ROCKWELL C MIN 53.0 IN. AND MAX 58.0 IN. |
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