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National Stock Number:
3120-00-661-5662
Federal Supply Class:
3120
National Item Identification Number:
006615662
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:
| 078988 | 24617 | GENERAL MOTORS CORP | | 078988 | 7X677 | GENERAL MOTORS LLC | | 11A8443 | 95201 | NAPCO INTERNATIONAL LLC | | 11EHT43 | 76040 | MACK TRUCKS INC PARTS OPN | | 322D5 | 56442 | DIAMOND REO TRUCK CO | | 322D5 | 77640 | ZF ACTIVE SAFETY AND ELECTRONICS US LLC | | 46724C | 56442 | DIAMOND REO TRUCK CO | | 4NFG0638 | 62265 | VOLVO TRUCKS NORTH AMERICA INC. DBA FOREIGN PARENT IS VOLVO LASTVAGNAR AB GOTEBORG SWEDEN. | | 90423 | 65282 | WHITE MOTOR CORP | | XD601 | 53762 | SEAGRAVE CORP THE |
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Techincal Specification:
| BEARING SURFACE HOLE DIAMETER | 0.2500 INCHES NOMINAL FIRST | | BEARING SURFACE HOLE QUANTITY | 4 FIRST | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 2.3170 INCHES MINIMUM AND 2.3220 INCHES MAXIMUM | | HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM OVERALL | | LUBRICATION FEATURE | GROOVE RIGHT END SURFACE | | LUBRICATION FEATURE | GROOVE LEFT END SURFACE | | LUBRICATION FEATURE | PERFORATION FLAT BEARING SURFACE | | OUTSIDE DIAMETER | 4.0000 INCHES NOMINAL | | OVERALL THICKNESS | 0.0580 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY OVERALL | | SPECIAL FEATURES | HOLES EQUALLY SPACE ON BOLT CIRCLE | | STYLE DESIGNATOR | ROUND |
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