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National Stock Number:
3120-00-421-9628
Federal Supply Class:
3120
National Item Identification Number:
004219628
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:
| 31-7L4265 | 16662 | LIFT PARTS MFG CO INC DIV OF ECHLIN MFG CO THE | | 31-7L4265 | 66654 | TVH PARTS CO. | | 7L4265 | 11083 | CATERPILLAR INC |
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Techincal Specification:
| DIAMETER | 2.6000 INCHES MINIMUM AND 2.6400 INCHES MAXIMUM | | BEARING SURFACE HOLE DIAMETER | 0.1797 INCHES MINIMUM FIRST | | BEARING SURFACE HOLE DIAMETER | 0.1807 INCHES MAXIMUM SECOND | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 932 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 3.4800 INCHES MINIMUM AND 3.5200 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1870 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM | | SPECIAL FEATURES | TWO GROOVES ON EACH SIDE | | STYLE DESIGNATOR | ROUND |
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