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National Stock Number:
3120-00-182-8798
Federal Supply Class:
3120
National Item Identification Number:
001828798
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:
| 11657155 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 912348 | 34623 | AM GENERAL LLC |
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Techincal Specification:
| CENTER HOLE KEY QUANTITY | 1 | | CENTER HOLE KEYWAY QUANTITY | 1 | | CENTER HOLE KEYWAY DEPTH | 0.2187 INCHES NOMINAL | | CENTER HOLE KEYWAY RADIUS | 0.7500 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND W/ROUND KEYWAY | | CORNER SHAPE | SQUARE FIRST INSIDE CORNER | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | CORNER SHAPE | SQUARE SECOND INSIDE CORNER | | CORNER SHAPE | SQUARE SECOND OUTSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 1.1562 INCHES NOMINAL | | LUBRICATION FEATURE | GROOVE EXTERNAL SURFACE MEMBER | | OUTSIDE DIAMETER | 2.6250 INCHES NOMINAL | | OVERALL THICKNESS | 0.0615 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 937 OVERALL | | SPECIAL FEATURES | ONE FLAT ON DIAMETER 1.250 IN. FROM HORIZONTAL CENTERLINE | | STYLE DESIGNATOR | ROUND | | SURFACE CONDITION | GROUND |
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