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National Stock Number:
3120-00-972-8189
Federal Supply Class:
3120
National Item Identification Number:
009728189
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:
| 71761 | 80254 | TEXTRON LYCOMING INC WILLIAMSPORT PLANT | | 71761 | R1120 | SATAIR A/S |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6470 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 92.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OVERALL | | STYLE DESIGNATOR | ROUND | | OUTSIDE DIAMETER | 1.4600 INCHES MINIMUM AND | | 1.4800 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | OVERALL THICKNESS | 0.1590 INCHES MINIMUM AND | | 0.1610 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | DIAMETER | 0.7485 INCHES MINIMUM AND | | 0.7490 INCHES MAXIMUM | | SURFACE FINISH | 5.0 MICROINCHES LEFT SIDE | | 5.0 MICROINCHES RIGHT SIDE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 80254 | | DESIGN CONTROL REFERENCE | 71761 |
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