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National Stock Number:
3120-00-479-9281
Federal Supply Class:
3120
National Item Identification Number:
004799281
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:
| 03-6210-01 | 31435 | LUCAS AEROSPACE POWER EQUIPMENT CORPORATION | | 592361-14 | 73030 | HAMILTON SUNDSTRAND CORPORATION | | SYLC-791 | 05624 | GE AVIATION SYSTEMS LLC | | TRA411 | 5XMS1 | JTEKT BEARINGS NORTH AMERICA LLC | | TRA411 | 60380 | TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT | | M2086BE | 61208 | TWIN DISC, INCORPORATED |
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Techincal Specification:
| DIAMETER | 0.2500 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 75.5 ROCKWELL C MINIMUM OVERALL AND 79.0 ROCKWELL C MAXIMUM OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 0.6870 INCHES NOMINAL | | OVERALL THICKNESS | 0.0320 INCHES NOMINAL | | STYLE DESIGNATOR | ROUND |
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