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National Stock Number:
3120-01-109-4511
Federal Supply Class:
3120
National Item Identification Number:
011094511
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:
| 10396078 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 11629512 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| DIAMETER | 1.9400 INCHES MINIMUM AND 1.9600 INCHES MAXIMUM | | KEY WIDTH | 0.2600 INCHES MINIMUM AND 0.2800 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.7500 INCHES MINIMUM AND 2.7800 INCHES MAXIMUM | | OVERALL THICKNESS | 0.0615 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-13506 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY OVERALL | | STYLE DESIGNATOR | ROUND W/SQUARE KEYS |
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