3120-00-997-0538 BEARING,WASHER,THRUST Index 3120-00-997-0540 BEARING,WASHER,THRUST

National Stock Number:
3120-00-997-0539

Federal Supply Class:
3120

National Item Identification Number:
009970539

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:
60A5A918-11002387NAVAL AIR WARFARE CENTER AIRCRAFT DIV
60A5A918-11010001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.5010 INCHES NOMINAL
HARDNESS RATING72.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 76.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM OVERALL
OUTSIDE DIAMETER0.6120 INCHES NOMINAL
OVERALL THICKNESS0.0100 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
STYLE DESIGNATORROUND


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