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National Stock Number:
3120-01-109-4516
Federal Supply Class:
3120
National Item Identification Number:
011094516
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:
| 11629425 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 5.1000 INCHES MINIMUM AND 5.1200 INCHES MAXIMUM | | KEY LENGTH | 0.8360 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM | | KEY QUANTITY | 2 | | KEY WIDTH | 0.6800 INCHES MINIMUM AND 0.7200 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | OUTSIDE DIAMETER | 7.3000 INCHES MINIMUM AND 7.3400 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1350 INCHES NOMINAL | | STYLE DESIGNATOR | ROUND W/SQUARE KEYS |
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