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National Stock Number:
3120-00-983-0770
Federal Supply Class:
3120
National Item Identification Number:
009830770
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:
| 104-0420 | U2261 | LEE ASSOCIATES LTD | | 104B240 | 44940 | CUMMINS POWER GENERATION INC. | | 104B420 | 44940 | CUMMINS POWER GENERATION INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 2.4680 INCHES NOMINAL | | KEYWAY RADIUS | 0.1560 INCHES NOMINAL | | KEYWAY QUANTITY | 3 | | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE | | OUTSIDE DIAMETER | 3.1250 INCHES NOMINAL | | OVERALL THICKNESS | 0.0940 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J4600 COMP 794 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY OUTER LAYER | | MATERIAL | STEEL COMP 1010 OR STEEL COMP 1015 INNER LAYER | | SPECIAL FEATURES | 3 GROOVES ON SIDE | | WASHER KEYWAY DEPTH | 0.1560 INCHES NOMINAL | | STYLE DESIGNATOR | ROUND W/KEYWAYS |
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