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National Stock Number:
3120-01-179-1280
Federal Supply Class:
3120
National Item Identification Number:
011791280
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:
| 12324356 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | CHAMFERED OUTSIDE LEFT CORNER | | CORNER SHAPE | SQUARE INSIDE LEFT CORNER | | CORNER SHAPE | SQUARE INSIDE RIGHT CORNER | | CORNER SHAPE | SQUARE OUTSIDE RIGHT CORNER | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 5.8100 INCHES NOMINAL | | OUTSIDE DIAMETER | 6.2950 INCHES MINIMUM AND 6.3050 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1820 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY OVERALL | | STYLE DESIGNATOR | ROUND |
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