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National Stock Number:
3120-00-722-9661
Federal Supply Class:
3120
National Item Identification Number:
007229661
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:
| 7229661 | 19206 | ARMY, UNITED STATES DEPARTMENT OF THE BUSINESS DEVELOPMENT DBA WATERVLIET ARSENAL |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND | | 39.0 ROCKWELL C MAXIMUM OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 0.7460 INCHES MINIMUM AND | | 0.7480 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.1240 INCHES MINIMUM AND | | 0.1250 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 0.3150 INCHES MINIMUM AND | | 0.3250 INCHES MAXIMUM | | SURFACE FINISH | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | 63.0 MICROINCHES LEFT SIDE | | 63.0 MICROINCHES RIGHT SIDE | | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE | | CRITICALITY CODE JUSTIFICATION | ABKV AND | | ADUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 19206 | | DESIGN CONTROL REFERENCE | 7229661 |
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