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National Stock Number:
3120-00-445-1351
Federal Supply Class:
3120
National Item Identification Number:
004451351
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:
| 584462 | 98738 | HERLEY CHICAGO DBA STEWART WARNER ELECTRONICS |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND W/TWO FLATS | | CENTER HOLE WIDTH ACROSS FLATS | 0.5160 INCHES NOMINAL | | CORNER SHAPE | SQUARE FIRST INSIDE CORNER | | CORNER SHAPE | SQUARE SECOND INSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | CONVEX | | CURVATURE INSIDE RADIUS | 0.0940 INCHES NOMINAL | | CURVATURE OUTSIDE RADIUS | 0.0960 INCHES NOMINAL | | DIAMETER | 0.7250 INCHES NOMINAL | | OUTSIDE DIAMETER | 0.9500 INCHES NOMINAL | | OVERALL THICKNESS | 0.0160 INCHES NOMINAL | | MATERIAL | COPPER ALLOY OVERALL | | STYLE DESIGNATOR | ROUND W/TWO FLATS | | WIDTH ACROSS FLATS | 0.7450 INCHES NOMINAL | | SURFACE CONDITION | GROUND |
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