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National Stock Number:
3120-00-770-8115
Federal Supply Class:
3120
National Item Identification Number:
007708115
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:
| 6767758 | 24617 | GENERAL MOTORS CORP | | 7708115 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| CENTER HOLE KEYWAY DEPTH | 0.0940 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM | | CENTER HOLE KEYWAY RADIUS | 0.0940 INCHES MINIMUM AND 0.1040 INCHES MAXIMUM | | CENTER HOLE KEYWAY QUANTITY | 1 | | CENTER HOLE SHAPE STYLE | ROUND W/ROUND KEYWAY | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 6.3770 INCHES MINIMUM AND 6.3820 INCHES MAXIMUM | | FEATURES PROVIDED | CASEHARDENED | | KEYWAY QUANTITY | 3 | | KEYWAY RADIUS | 0.2500 INCHES NOMINAL | | OUTSIDE DIAMETER | 7.0000 INCHES NOMINAL | | OVERALL THICKNESS | 0.2640 INCHES MINIMUM AND 0.2670 INCHES MAXIMUM | | SPECIAL FEATURES | FIRST INSIDE CORNER CHAMFER 0.0625 IN. LG BY 45.0 DEG | | WASHER KEYWAY DEPTH | 0.1250 INCHES NOMINAL |
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