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National Stock Number:
3120-01-220-8621
Federal Supply Class:
3120
National Item Identification Number:
012208621
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.
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Manufacturer Information:
| 12009252 | 19200 | US ARMY ARDEC RDECOM | | 625X945912 | 5F573 | GREENE TWEED & CO INC | | 625X945912 | 72902 | PALMETTO INC | | 625X945923 | 5F573 | GREENE TWEED & CO INC |
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Techincal Specification:
| DIAMETER | 3.7460 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | MATERIAL DOCUMENT AND CLASSIFICATION | 910,MOLYFILLED,GRADELB PHENOLIC LAMINATE,TO GTC SPEC PE061682A MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | PLASTIC PHENOLIC OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 4.0000 INCHES NOMINAL | | OVERALL THICKNESS | 0.6150 INCHES NOMINAL | | SPECIAL FEATURES | WASHER ENDS DONOTJOIN,GAP0.1250INCH | | STYLE DESIGNATOR | ROUND |
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