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National Stock Number:
3120-00-776-7897
Federal Supply Class:
3120
National Item Identification Number:
007767897
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:
| 31207767897 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 31207767897 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE | | 6761484 | 24617 | GENERAL MOTORS CORP | | 6761484 | 73342 | ALLISON TRANSMISSION INC | | 7767897 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 7767897 | 3PGU9 | SAPA TRANSMISSION INC |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 546-CANCELED OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-13501 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 60.0 ROCKWELL B MINIMUM OVERALL | | OUTSIDE DIAMETER | 4.2500 INCHES NOMINAL | | KEY QUANTITY | 2 | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0610 INCHES MINIMUM AND | | 0.0640 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 2.9950 INCHES MINIMUM AND | | 3.0050 INCHES MAXIMUM | | SURFACE CONDITION | GROUND |
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