3120-01-069-3473 BEARING,WASHER,THRUST Index 4820-01-069-3475 VALVE,CALIBRATED FLOW

National Stock Number:
3120-01-069-3474

Federal Supply Class:
3120

National Item Identification Number:
010693474

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:
709-4684903 ITEM 253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.7810 INCHES NOMINAL
LUBRICATION MATERIALLUBRICANT, MANUFACTURERS STANDARD
OUTSIDE DIAMETER1.5000 INCHES NOMINAL
OVERALL THICKNESS0.1250 INCHES NOMINAL
MATERIALPLASTIC OVERALL
STYLE DESIGNATORROUND


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