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National Stock Number:
3120-01-368-3763
Federal Supply Class:
3120
National Item Identification Number:
013683763
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:
| 2D3-03529-24 | 34712 | LAKE SHORE SYSTEMS, INC. | | 5B-06013 | 34712 | LAKE SHORE SYSTEMS, INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 2.5000 INCHES MINIMUM AND 2.5050 INCHES MAXIMUM | | OUTSIDE DIAMETER | 3.4370 INCHES MINIMUM AND 3.4520 INCHES MAXIMUM | | OVERALL THICKNESS | 0.5050 INCHES MINIMUM AND 0.5150 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY OVERALL | | STYLE DESIGNATOR | ROUND |
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