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National Stock Number:
3120-01-184-5162
Federal Supply Class:
3120
National Item Identification Number:
011845162
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:
| 7-317221470 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | | 7-317221470 | 8V613 | THE BOEING COMPANY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | DIAMETER | 0.3558 INCHES MINIMUM AND 0.3563 INCHES MAXIMUM | | FLANGE THICKNESS | 0.1200 INCHES MINIMUM AND 0.1300 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.6900 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM | | OVERALL THICKNESS | 0.5600 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 CONDITION A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | SHANK OUTSIDE DIAMETER | 0.5905 INCHES MINIMUM AND 0.5908 INCHES MAXIMUM | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 63.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | SURFACE FINISH | 32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL |
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