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National Stock Number:
3120-00-698-1909
Federal Supply Class:
3120
National Item Identification Number:
006981909
Description:
BEARING,WASHER,THRUST
Detail:
An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also WASHER, FLAT and SPACER, SLEEVE.
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Manufacturer Information:
| 7966557 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 907257 | 11862 | GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT | | 907257 | 24617 | GENERAL MOTORS CORP | | 907257 | 7X677 | GENERAL MOTORS LLC |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 544 OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 2.1130 INCHES MINIMUM AND | | 2.1180 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0920 INCHES MINIMUM AND | | 0.0940 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 1.6200 INCHES NOMINAL | | LUBRICATION FEATURE | GROOVE EXTERNAL SURFACE MEMBER | | BEARING SURFACE HOLE QUANTITY | 1 FIRST | | BEARING SURFACE HOLE DIAMETER | 0.1250 INCHES NOMINAL FIRST |
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