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National Stock Number:
3120-01-194-6495
Federal Supply Class:
3120
National Item Identification Number:
011946495
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:
| 3979450 | 11862 | GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT | | 3979450 | 7X677 | GENERAL MOTORS LLC | | 99476 | 76760 | NEW VENTURE GEAR INC NEW PROCESS GEAR DIV | | B-99476 | 76760 | NEW VENTURE GEAR INC NEW PROCESS GEAR DIV | | CHEV-3979450 | 76760 | NEW VENTURE GEAR INC NEW PROCESS GEAR DIV |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 1.3800 INCHES MINIMUM AND 1.4050 INCHES MAXIMUM | | FEATURES PROVIDED | CASEHARDENED | | KEYWAY QUANTITY | 4 | | OVERALL THICKNESS | 0.1540 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL | | STYLE DESIGNATOR | ROUND W/KEYWAYS | | SURFACE CONDITION | GROUND |
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