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National Stock Number:
3120-00-132-1439
Federal Supply Class:
3120
National Item Identification Number:
001321439
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:
| 206-010-171-1 | 54878 | ROTAIR AEROSPACE CORP | | 206-010-171-1 | 97499 | BELL TEXTRON INC |
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Techincal Specification:
| MATERIAL | PLASTIC INNER LAYER | | COPPER ALLOY INTERMEDIATE LAYER | | STEEL OUTER LAYER | | MATERIAL DOCUMENT AND CLASSIFICATION | DU,78912 MFR REF SINGLE MATERIAL RESPONSE INNER LAYER | | DU,78912 MFR REF SINGLE MATERIAL RESPONSE INTERMEDIATE LAYER | | DU,78912 MFR REF SINGLE MATERIAL RESPONSE OUTER LAYER | | SURFACE TREATMENT | CADMIUM INSIDE DIAMETER SURFACE OF BODY | | CADMIUM LARGEST OUTSIDE DIAMETER | | CADMIUM RIGHT SIDE | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 0.6400 INCHES MINIMUM AND | | 0.6600 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0810 INCHES MINIMUM AND | | 0.1010 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 0.2550 INCHES MINIMUM AND | | 0.2750 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 97499 | | DESIGN CONTROL REFERENCE | 206-010-171-1 |
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