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National Stock Number:
3120-01-202-7730
Federal Supply Class:
3120
National Item Identification Number:
012027730
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:
| 8267870 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | CHAMFERED FIRST OUTSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | DIAMETER | 0.6720 INCHES NOMINAL | | FLANGE THICKNESS | 0.0750 INCHES NOMINAL | | OUTSIDE DIAMETER | 1.5620 INCHES NOMINAL | | OVERALL THICKNESS | 0.0900 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 CL 303 CD A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | SHANK OUTSIDE DIAMETER | 0.9370 INCHES NOMINAL | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 63.0 MICROINCHES RIGHT SIDE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171 FN 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL |
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