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National Stock Number:
3120-01-079-8194
Federal Supply Class:
3120
National Item Identification Number:
010798194
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:
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 2.5050 INCHES MINIMUM AND 2.5100 INCHES MAXIMUM | | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE | | OUTSIDE DIAMETER | 3.1810 INCHES MINIMUM AND 3.1950 INCHES MAXIMUM | | OVERALL THICKNESS | 0.0930 INCHES MINIMUM AND 0.0980 INCHES MAXIMUM | | SPECIAL FEATURES | 0.0645 IN. NOM FIRST INSIDE CORNER CHAMFER LG,45.0 DEG CHAMFER ANGLE | | STYLE DESIGNATOR | ROUND |
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