3120-00-661-3281 BEARING,WASHER,THRUST Index 3120-00-661-3283 BEARING,WASHER,THRUST

National Stock Number:
3120-00-661-3282

Federal Supply Class:
3120

National Item Identification Number:
006613282

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:
5H40-106210855CARRIER CORP
N8640-6PC3710855CARRIER CORP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER2.8170 INCHES MINIMUM AND 2.8220 INCHES MAXIMUM
KEYWAY RADIUS0.1562 INCHES NOMINAL
KEYWAY QUANTITY1
OUTSIDE DIAMETER4.2340 INCHES MINIMUM AND 4.2660 INCHES MAXIMUM
OVERALL THICKNESS0.1860 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
WASHER KEYWAY DEPTH0.1562 INCHES NOMINAL
STYLE DESIGNATORROUND W/KEYWAYS
SURFACE CONDITIONGROUND


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