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National Stock Number:
3120-01-078-9716
Federal Supply Class:
3120
National Item Identification Number:
010789716
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:
| 4592694-11 | 12934 | NAVAL AIR WARFARE CENTER WEAPONS DIV | | 4592694-11 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE FIRST INSIDE CORNER | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | CORNER SHAPE | SQUARE FOURTH OUTSIDE CORNER | | CORNER SHAPE | SQUARE SECOND INSIDE CORNER | | CORNER SHAPE | SQUARE SECOND OUTSIDE CORNER | | CORNER SHAPE | SQUARE THIRD OUTSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | DIAMETER | 1.8750 INCHES MINIMUM AND 1.8850 INCHES MAXIMUM | | FLANGE THICKNESS | 0.1250 INCHES NOMINAL | | OUTSIDE DIAMETER | 2.3100 INCHES NOMINAL | | OVERALL THICKNESS | 0.4400 INCHES NOMINAL | | MATERIAL | LUBRICANT LUBRICATION | | MATERIAL | PLASTIC OVERALL | | SHANK OUTSIDE DIAMETER | 2.1850 INCHES MINIMUM AND 2.1880 INCHES MAXIMUM | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 63.0 MICROINCHES OVERALL |
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