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National Stock Number:
3120-01-123-2896
Federal Supply Class:
3120
National Item Identification Number:
011232896
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:
| 2644213 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 2644213 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 841 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B438, TY 1, GR 1, CL A ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 1.5600 INCHES MINIMUM AND | | 1.5750 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.1820 INCHES MINIMUM AND | | 0.1900 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND W/KEYWAY | | DIAMETER | 0.7520 INCHES MINIMUM AND | | 0.7560 INCHES MAXIMUM | | CENTER HOLE KEYWAY DEPTH | 0.1540 INCHES NOMINAL | | CENTER HOLE KEYWAY WIDTH | 0.1880 INCHES MINIMUM AND | | 0.1980 INCHES MAXIMUM | | CENTER HOLE KEYWAY QUANTITY | 2 | | SURFACE FINISH | 125.0 MICROINCHES OVERALL | | LUBRICATION MATERIAL | LUBRICATING OIL |
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