4820-00-353-4563 SEAT,VALVE Index 4820-00-353-4576 VALVE,FLOAT

National Stock Number:
3120-00-353-4575

Federal Supply Class:
3120

National Item Identification Number:
003534575

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:
9A503268AMES IRON WORKS
P31Q1-124976DANFOSS INC
P31Q1-132223JOHNSON S T CO
P31Q1-164294DANFOSS FLUID POWER INC RACINE OPN
P31Q1-195014CYCLOTHERM DIV OSWEGO PACKAGE BOILER CO INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.3120 INCHES MINIMUM AND 0.3190 INCHES MAXIMUM
OUTSIDE DIAMETER0.8125 INCHES NOMINAL
OVERALL THICKNESS0.0540 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM
STYLE DESIGNATORROUND


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