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National Stock Number:
3120-00-501-2984
Federal Supply Class:
3120
National Item Identification Number:
005012984
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:
| 5012984 | 19206 | ARMY, UNITED STATES DEPARTMENT OF THE BUSINESS DEVELOPMENT DBA WATERVLIET ARSENAL |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CRITICALITY CODE JUSTIFICATION | ADUM AND ABMZ | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 1.4180 INCHES MINIMUM AND 1.4230 INCHES MAXIMUM | | LUBRICATION FEATURE | GROOVE FLAT BEARING SURFACE | | OUTSIDE DIAMETER | 1.7000 INCHES MINIMUM AND 1.7100 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1170 INCHES MINIMUM AND 0.1180 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 125.0 MICROINCHES OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL |
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