3120-01-263-8901 BEARING,WASHER,THRUST Index 3120-01-263-8903 BEARING,WASHER,THRUST

National Stock Number:
3120-01-263-8902

Federal Supply Class:
3120

National Item Identification Number:
012638902

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.


Manufacturer Information:
8D259311083CATERPILLAR INC


Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATION1E231,CAGEC 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 932 OVERALL
PROPRIETARY CHARACTERISTICSPACS
OUTSIDE DIAMETER4.5900 INCHES NOMINAL
OVERALL THICKNESS0.1440 INCHES MINIMUM AND 0.1480 INCHES MAXIMUM
STYLE DESIGNATORROUND
SURFACE CONDITIONGROUND
SURFACE FINISH32.0 MICROINCHES LEFT SIDE
SURFACE FINISH32.0 MICROINCHES RIGHT SIDE
DIAMETER3.3120 INCHES NOMINAL
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
LUBRICATION FEATUREGROOVE LEFT SIDE AND PERFORATION LEFT SIDE
LUBRICATION FEATUREGROOVE RIGHT SIDE AND PERFORATION RIGHT SIDE


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