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National Stock Number:
3120-00-764-6795
Federal Supply Class:
3120
National Item Identification Number:
007646795
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:
| 53369D | 0SAT8 | KOMATSU AMERICA CORP. | | 53369D | 29510 | KOMATSU AMERICAN INTL CO | | 53369D | 31007 | NAVISTAR INTL CORP | | 53369D | 92679 | NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 1.9375 INCHES NOMINAL | | HARDNESS RATING | 60.0 ROCKWELL B MINIMUM OVERALL | | KEY LENGTH | 0.3110 INCHES NOMINAL | | KEY QUANTITY | 2 | | KEY RADIUS | 0.2180 INCHES NOMINAL | | OUTSIDE DIAMETER | 2.7187 INCHES NOMINAL | | OVERALL THICKNESS | 0.0830 INCHES MINIMUM AND 0.0870 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY OVERALL | | STYLE DESIGNATOR | ROUND W/ROUND KEYS | | SPECIAL FEATURES | SAME AS STYLE 31 EXCEPT AS MODIFIED,FLAT BEARING SURFACE BETWEEN KEYS 2.6250 IN.OD,0.062 IN.RADIUS AT BOTTOM OF KEY IN LIEU OF CHAMFER | | SURFACE CONDITION | GROUND |
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