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National Stock Number:
3120-01-044-8346
Federal Supply Class:
3120
National Item Identification Number:
010448346
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:
| 297936 | 53800 | SEARS, ROEBUCK AND CO. | | 297936 | 81306 | WHIRLPOOL CORP |
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Techincal Specification:
| MATERIAL | PLASTIC POLYAMIDE OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | DELRIN 500,FSCM 18873 MFR REF SINGLE MATERIAL RESPONSE OR | | CELCON M90-04,FSCM 90614 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | ROUND W/ROUND KEYS | | KEY LENGTH | 0.1900 INCHES NOMINAL | | OUTSIDE DIAMETER | 44.0860 INCHES MINIMUM AND | | 44.1960 INCHES MAXIMUM | | KEY RADIUS | 0.0100 INCHES NOMINAL | | KEY QUANTITY | 4 | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | ROUND SECOND OUTSIDE CORNER | | ROUND FIRST INSIDE CORNER | | SQUARE SECOND INSIDE CORNER | | SQUARE FOURTH INSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | COUNTERBORED | | COUNTERBORE DIAMETER | 43.9210 INCHES NOMINAL | | COUNTERBORE DEPTH | 0.6900 INCHES NOMINAL | | OVERALL THICKNESS | 0.7300 INCHES MINIMUM AND | | 0.7700 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 43.8010 INCHES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 81306 | | DESIGN CONTROL REFERENCE | 297936 |
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