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National Stock Number:
3120-01-156-3827
Federal Supply Class:
3120
National Item Identification Number:
011563827
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:
| 3984818 | 11862 | GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT | | 3984818 | 7X677 | GENERAL MOTORS LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | DIAMETER | 0.7970 INCHES MINIMUM AND 0.7980 INCHES MAXIMUM | | FLANGE THICKNESS | 0.0290 INCHES MINIMUM AND 0.0320 INCHES MAXIMUM | | INSIDE SPHERICAL RADIUS | 2.0180 INCHES NOMINAL | | OUTSIDE DIAMETER | 1.7000 INCHES NOMINAL | | OUTSIDE SPHERICAL RADIUS | 2.0470 INCHES MINIMUM AND 2.0500 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1000 INCHES NOMINAL | | MATERIAL | STEEL COMP 1008 OR STEEL COMP 1010 OVERALL | | SHANK OUTSIDE DIAMETER | 0.8640 INCHES MINIMUM AND 0.8700 INCHES MAXIMUM | | STYLE DESIGNATOR | ROUND | | SURFACE CONDITION | GROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | GM 4277M,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL |
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