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National Stock Number:
3120-00-161-9635
Federal Supply Class:
3120
National Item Identification Number:
001619635
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:
| 135-032-10 | 21198 | MARCH MANUFACTURING, INC | | 182290 | 19139 | EASTMAN KODAK CO |
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Techincal Specification:
| MATERIAL | CARBON OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | GRADE 8645,78429 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 0.4800 INCHES MINIMUM AND | | 0.4900 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0850 INCHES MINIMUM AND | | 0.0950 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 0.2760 INCHES MINIMUM AND | | 0.2860 INCHES MAXIMUM | | SURFACE CONDITION | GROUND | | SPECIAL FEATURES | BEARING SURFACE HOLE COUNTERBORE 0.075 IN. DIA BY 0.055 IN. MIN TO 0.060 IN. MAX DEEP | | BEARING SURFACE HOLE DIAMETER | 0.0300 INCHES NOMINAL FIRST |
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