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National Stock Number:
3120-00-839-5431
Federal Supply Class:
3120
National Item Identification Number:
008395431
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:
| 204-011-420-001 | 97499 | BELL TEXTRON INC | | 204-011-420-1 | 97499 | BELL TEXTRON INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 0.7650 INCHES MINIMUM AND 0.7850 INCHES MAXIMUM | | HARDNESS RATING | 75.0 ROCKWELL M NOMINAL OVERALL | | OUTSIDE DIAMETER | 1.3900 INCHES MINIMUM AND 1.4100 INCHES MAXIMUM | | OVERALL THICKNESS | 0.0595 INCHES MINIMUM AND 0.0655 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | 204-011-420-1,97499 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | PLASTIC TETRAFLUOROETHYLENE OVERALL | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | SURFACE FINISH | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | SURFACE FINISH | 16.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 16.0 MICROINCHES RIGHT SIDE |
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