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National Stock Number:
3120-00-899-4072
Federal Supply Class:
3120
National Item Identification Number:
008994072
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:
| 7328402 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 7578-18 | 52793 | SAGINAW PRODUCTS CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 1.0050 INCHES MINIMUM AND 1.0120 INCHES MAXIMUM | | FEATURES PROVIDED | CASEHARDENED | | OVERALL THICKNESS | 0.0850 INCHES MINIMUM AND 0.0870 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-631 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | OIL LUBRICATING LUBRICATION | | MATERIAL | STEEL OVERALL | | OUTSIDE DIAMETER | 1.2350 INCHES MINIMUM AND 1.2600 INCHES MAXIMUM | | STYLE DESIGNATOR | ROUND |
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