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National Stock Number:
3120-01-339-4129
Federal Supply Class:
3120
National Item Identification Number:
013394129
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:
| 211040647 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 211086735 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 801-6404589 FIND 19 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 801-6404589 ITEM 19 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 801-6404589-19 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 2.1280 INCHES MINIMUM AND 2.1340 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.4920 INCHES MINIMUM AND 2.4940 INCHES MAXIMUM | | OVERALL THICKNESS | 0.5580 INCHES MINIMUM AND 0.5620 INCHES MAXIMUM | | MATERIAL | PLASTIC POLYAMIDE (NYLON) OVERALL | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 32.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 32.0 MICROINCHES RIGHT SIDE |
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