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National Stock Number:
3120-01-495-0540
Federal Supply Class:
3120
National Item Identification Number:
014950540
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:
| 122-4734979 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 122-4734979 P/N 27 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 845-7286646 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| DIAMETER | 1.7656 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-639 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | BRASS OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 3.6250 INCHES NOMINAL | | OVERALL THICKNESS | 0.1880 INCHES NOMINAL | | SPECIAL FEATURES | TECH DATA NOT AUTHORIZED TO BE RELEASED OUTSIDE OF US | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 63.0 MICROINCHES BODY | | SURFACE FINISH | 63.0 MICROINCHES RIGHT END SURFACE |
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