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National Stock Number:
3120-01-204-4252
Federal Supply Class:
3120
National Item Identification Number:
012044252
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:
| AH-4-W | 00141 | ROLLER BEARING CO OF AMERICA, INC | | K18W0001-1 | 12464 | MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS ELECTRONIC SYSTEMS CO |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 0.3160 INCHES MINIMUM AND 0.3200 INCHES MAXIMUM | | LUBRICATION MATERIAL | LUBRICATING OIL | | OUTSIDE DIAMETER | 0.7430 INCHES MINIMUM AND 0.7470 INCHES MAXIMUM | | OVERALL THICKNESS | 0.0910 INCHES MINIMUM AND 0.0950 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY 841 OVERALL | | STYLE DESIGNATOR | ROUND |
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