3120-01-269-6397 BEARING,WASHER,THRUST Index 5307-01-269-6399 STUD,CONTINUOUS THREAD

National Stock Number:
3120-01-269-6398

Federal Supply Class:
3120

National Item Identification Number:
012696398

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:
SM-C-808529-380063US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR


Techincal Specification:
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-22241,TYPE 2,GRADE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORROUND
OUTSIDE DIAMETER0.3750 INCHES NOMINAL
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL THICKNESS0.0345 INCHES MINIMUM AND
0.0375 INCHES MAXIMUM
CENTER HOLE SHAPE STYLEROUND
DIAMETER0.1890 INCHES MINIMUM AND
0.1940 INCHES MAXIMUM
SURFACE CONDITIONGROUND


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