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National Stock Number:
3120-01-161-4033
Federal Supply Class:
3120
National Item Identification Number:
011614033
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:
| 3120PL0740155 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | 5740308 | 34623 | AM GENERAL LLC | | 8625404 | 11862 | GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT | | 8625404 | 7X677 | GENERAL MOTORS LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 2.2800 INCHES NOMINAL | | FEATURES PROVIDED | CASEHARDENED | | HARDNESS RATING | 80.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OVERALL | | KEY LENGTH | 0.3000 INCHES NOMINAL | | KEY QUANTITY | 3 | | KEY WIDTH | 0.2600 INCHES NOMINAL | | OUTSIDE DIAMETER | 3.4000 INCHES NOMINAL | | OVERALL THICKNESS | 0.0980 INCHES MINIMUM AND 0.1020 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1010 OVERALL | | SPECIAL FEATURES | 0.0300 IN. DEEP NOTCH ON OD OF 1 KEY | | STYLE DESIGNATOR | ROUND W/SQUARE KEYS | | SURFACE FINISH | 5.0 MICROINCHES INTERNAL SURFACES | | SURFACE FINISH | 5.0 MICROINCHES RIGHT SIDE |
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