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National Stock Number:
3120-00-524-6430
Federal Supply Class:
3120
National Item Identification Number:
005246430
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:
| 1233039 | 79500 | WESTINGHOUSE ELECTRIC CORP | | 5246430 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | A57-136,WD1075,WD1085,WD1095,FSCM 79500 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 49.0 ROCKWELL C MINIMUM AND | | 56.0 ROCKWELL C MAXIMUM OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 1.5950 INCHES MINIMUM AND | | 1.6000 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.0490 INCHES MINIMUM AND | | 0.0530 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND W/TWO FLATS | | DIAMETER | 1.1250 INCHES MINIMUM AND | | 1.1290 INCHES MAXIMUM | | CENTER HOLE WIDTH ACROSS FLATS | 0.8750 INCHES MINIMUM AND | | 0.8770 INCHES MAXIMUM | | SURFACE CONDITION | GROUND | | SPECIAL FEATURES | ALL 4 CORNERS OF APERTURE HAVE 0.0310 IN. RADIUS BY 0.010 IN. DEEP RELIEF |
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