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National Stock Number:
3120-00-930-0284
Federal Supply Class:
3120
National Item Identification Number:
009300284
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:
| 1-5M3021 | 11083 | CATERPILLAR INC | | 9F7237 | 11083 | CATERPILLAR INC |
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Techincal Specification:
| DIAMETER | 7.0630 INCHES MINIMUM AND 7.0680 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | CHAMFERED FIRST INSIDE CORNER | | CORNER SHAPE | CHAMFERED SECOND INSIDE CORNER | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | CORNER SHAPE | SQUARE SECOND OUTSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | LUBRICATION FEATURE | GROOVE INSIDE DIAMETER SURFACE OF BODY | | LUBRICATION MATERIAL | LUBRICATING OIL | | MATERIAL | COPPER ALLOY OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 8.9062 INCHES NOMINAL | | OVERALL THICKNESS | 0.1170 INCHES MINIMUM AND 0.1220 INCHES MAXIMUM | | SPECIAL FEATURES | FIRST INSIDE CORNER CHAMFER LENGTH 0.0469,FIRST INSIDE CORNER CHAMFER ANGLE IN DEG 45.0 | | STYLE DESIGNATOR | ROUND |
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