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National Stock Number:
3120-01-128-1609
Federal Supply Class:
3120
National Item Identification Number:
011281609
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:
| 42312D240 | 04602 | B-C-D METAL PRODUCTS, INC | | 42312D240 | 05141 | MCMELLON BROS., INCORPORATED | | 42312D240 | 56878 | SPS TECHNOLOGIES, LLC | | 42312D240 | 82037 | PEERLESS PRECISON INC | | 42312D240 | 82402 | TRIUMPH GEAR SYSTEMS INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 0.7880 INCHES MINIMUM AND 0.7930 INCHES MAXIMUM | | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL | | LUBRICATION FEATURE | GROOVE INSIDE DIAMETER SURFACE OF BODY | | OUTSIDE DIAMETER | 1.0600 INCHES MINIMUM AND 1.0800 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1260 INCHES MINIMUM AND 0.1280 INCHES MAXIMUM | | MATERIAL | STEEL COMP E4340 AND STEEL COMP 4140 OVERALL | | SPECIAL FEATURES | WITH FOUR 0.0470 IN. MIN,0.0510 IN. MAX DIA HOLES NOT ON BEARING SURFACE | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 250.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | SURFACE FINISH | 250.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | SURFACE FINISH | 63.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 63.0 MICROINCHES RIGHT SIDE | | TEST DATA DOCUMENT | 76301-PS-21201 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
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