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National Stock Number:
3120-00-656-7260
Federal Supply Class:
3120
National Item Identification Number:
006567260
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:
| 1663-1 | 43491 | GENERAL SIGNAL CORP | | 1663-1 | 90166 | EATON AEROSPACE, LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 0.5050 INCHES NOMINAL | | HARDNESS RATING | 68.0 ROCKWELL A MINIMUM AND 70.0 ROCKWELL A MAXIMUM OVERALL | | KEYWAY RADIUS | 0.0930 INCHES NOMINAL | | KEYWAY QUANTITY | 1 | | OUTSIDE DIAMETER | 0.6250 INCHES NOMINAL | | OVERALL THICKNESS | 0.0290 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL COMP 1040 OR STEEL COMP 1045 OR STEEL COMP 1050 OVERALL | | WASHER KEYWAY DEPTH | 0.0150 INCHES NOMINAL | | STYLE DESIGNATOR | ROUND W/KEYWAYS | | SURFACE CONDITION | GROUND |
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