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National Stock Number:
3120-00-210-2274
Federal Supply Class:
3120
National Item Identification Number:
002102274
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:
| 1339126PC2 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| BEARING SURFACE HOLE DIAMETER | 0.2540 INCHES MINIMUM FIRST | | BEARING SURFACE HOLE DIAMETER | 0.2560 INCHES MAXIMUM SECOND | | CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 3.0030 INCHES MINIMUM AND 3.0080 INCHES MAXIMUM | | FEATURES PROVIDED | CASEHARDENED | | OUTSIDE DIAMETER | 3.9900 INCHES MINIMUM AND 4.0100 INCHES MAXIMUM | | OVERALL THICKNESS | 0.3740 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM | | SPECIAL FEATURES | W/6 GROOVES,BEARING SURFACE HOLES ARE 0.1875 IN. DEEP ON A 3.5000 IN. BOLT CIRCLE | | STYLE DESIGNATOR | ROUND |
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