3120-01-021-3807 BUSHING,SLEEVE Index 4820-01-021-3809 VALVE,GATE

National Stock Number:
3120-01-021-3808

Federal Supply Class:
3120

National Item Identification Number:
010213808

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:
JYLC-82505624GE AVIATION SYSTEMS LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.4373 INCHES MINIMUM AND 0.4381 INCHES MAXIMUM
LUBRICATION MATERIALLUBRICATING OIL
OUTSIDE DIAMETER0.4950 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM
OVERALL THICKNESS0.0660 INCHES MINIMUM AND 0.0720 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORROUND


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