5306-00-006-4768 BOLT,CLOSE TOLERANCE Index 3120-00-006-4772 BEARING,WASHER,THRUST

National Stock Number:
3120-00-006-4771

Federal Supply Class:
3120

National Item Identification Number:
000064771

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:
1908865PC1482522PUGET SOUND NAVAL SHIPYARD AND INTERMEDIATE MAINTENCE FACILITY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER1.5020 INCHES MINIMUM AND 1.5040 INCHES MAXIMUM
OUTSIDE DIAMETER2.7188 INCHES MINIMUM AND 2.7812 INCHES MAXIMUM
OVERALL THICKNESS0.1850 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM
MATERIALCOPPER ALLOY 865 OVERALL
STYLE DESIGNATORROUND
SURFACE CONDITIONGROUND


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