3120-01-349-5220 BEARING,WASHER,THRUST Index 4820-01-349-5222 VALVE,GLOBE

National Stock Number:
3120-01-349-5221

Federal Supply Class:
3120

National Item Identification Number:
013495221

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:
743684-599167HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.3800 INCHES MINIMUM AND 0.3860 INCHES MAXIMUM
OUTSIDE DIAMETER0.6720 INCHES MINIMUM AND 0.7020 INCHES MAXIMUM
OVERALL THICKNESS0.0425 INCHES MINIMUM AND 0.0475 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 510 OVERALL
STYLE DESIGNATORROUND


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