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National Stock Number:
3120-00-303-4977
Federal Supply Class:
3120
National Item Identification Number:
003034977
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:
| 11A1229 | 95201 | NAPCO INTERNATIONAL LLC | | 1229H1022 | 02413 | KERSEY / AMERICAN LAFRANCE A DIV OF FIGGIE INTERNATIONAL INC | | 1229H1022 | 3D6E9 | MERITOR INDUSTRIAL PRODUCTS, LLC | | 2201D5 | 56442 | DIAMOND REO TRUCK CO | | 1229H1022 | 78500 | MERITOR HEAVY VEHICLE SYSTEMS, LLC | | 1229H1022 | 99539 | GENERAL FIRE EXTINGUISHER CORP |
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Techincal Specification:
| MATERIAL | STEEL COMP 1010 OR | | STEEL COMP 1011 OR | | STEEL COMP 1012 OR | | STEEL COMP 1013 OR | | STEEL COMP 1015 OR | | STEEL COMP 1016 OR | | STEEL COMP 1017 OR | | STEEL COMP 1018 OR | | STEEL COMP 1019 OR | | STEEL COMP 1020 OVERALL | | HARDNESS RATING | 57.0 ROCKWELL C NOMINAL OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 4.3750 INCHES NOMINAL | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.1210 INCHES MINIMUM AND | | 0.1250 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 2.9500 INCHES MINIMUM AND | | 2.9550 INCHES MAXIMUM | | SURFACE FINISH | 100.0 MICROINCHES LEFT SIDE | | 100.0 MICROINCHES RIGHT SIDE | | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE | | FEATURES PROVIDED | CASEHARDENED | | BEARING SURFACE HOLE QUANTITY | 4 FIRST | | BEARING SURFACE HOLE DIAMETER | 0.3120 INCHES NOMINAL FIRST | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 78500 | | DESIGN CONTROL REFERENCE | 1229H1022 |
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