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National Stock Number:
3120-01-057-2971
Federal Supply Class:
3120
National Item Identification Number:
010572971
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:
| 4775905-0044 | 96169 | ELECTRIC BOAT CORPORATION | | 516-4775905 ITE | 53711 | NAVAL SEA SYSTEMS COMMAND | | 516-4775906 ITEM 39 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 87791-5501 ITEM 44 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 1.0750 INCHES NOMINAL | | LUBRICATION MATERIAL | LUBRICANT, MANUFACTURERS STANDARD | | OUTSIDE DIAMETER | 1.3080 INCHES NOMINAL | | OVERALL THICKNESS | 0.0600 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM | | MATERIAL | PLASTIC OVERALL | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | SURFACE FINISH | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | SURFACE FINISH | 63.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 63.0 MICROINCHES RIGHT SIDE |
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