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National Stock Number:
3120-01-348-0890
Federal Supply Class:
3120
National Item Identification Number:
013480890
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:
| SM436159 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | SMB436159 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND W/TWO FLATS | | CENTER HOLE WIDTH ACROSS FLATS | 0.2260 INCHES MINIMUM AND 0.2290 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | FLANGE THICKNESS | 0.0460 INCHES NOMINAL | | OUTSIDE DIAMETER | 0.8900 INCHES NOMINAL | | OVERALL THICKNESS | 0.0600 INCHES NOMINAL | | MATERIAL | STEEL COMP 302 OVERALL | | SHANK OUTSIDE DIAMETER | 0.7250 INCHES NOMINAL | | STYLE DESIGNATOR | ROUND |
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