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National Stock Number: 3120-00-419-3418
Federal Supply Class: 3120
National Item Identification Number: 004193418
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:
| 10246676 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 0.6300 INCHES MINIMUM AND 0.6500 INCHES MAXIMUM | | FEATURES PROVIDED | CASEHARDENED | | OVERALL THICKNESS | 0.0800 INCHES MINIMUM AND 0.1000 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL | | OUTSIDE DIAMETER | 1.6500 INCHES MINIMUM AND 1.7100 INCHES MAXIMUM | | STYLE DESIGNATOR | ROUND |
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