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National Stock Number:
3120-00-860-5100
Federal Supply Class:
3120
National Item Identification Number:
008605100
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:
| 516-1893303 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 9800-320X2PC25 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| MATERIAL | PLASTIC POLYAMIDE OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 0.7230 INCHES MINIMUM AND | | 0.7240 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0625 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 0.4980 INCHES MINIMUM AND | | 0.5010 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES OVERALL | | LUBRICATION MATERIAL | MOLYBDENUM DISULFIDE |
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