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National Stock Number:
3120-00-525-7442
Federal Supply Class:
3120
National Item Identification Number:
005257442
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:
| 160637P015W | 00198 | PRATT & WHITNEY CANADA CORP | | 160637P15W | 00198 | PRATT & WHITNEY CANADA CORP |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE FIRST INSIDE CORNER | | CORNER SHAPE | SQUARE FIRST OUTSIDE CORNER | | CORNER SHAPE | SQUARE SECOND INSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | TAPERED SIDE | | DIAMETER | 1.2630 INCHES MINIMUM AND 1.2650 INCHES MAXIMUM | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL | | OUTSIDE DIAMETER | 1.7400 INCHES MINIMUM AND 1.7600 INCHES MAXIMUM | | OUTSIDE SPHERICAL RADIUS | 1.2450 INCHES MINIMUM AND 1.2550 INCHES MAXIMUM | | OVERALL THICKNESS | 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM | | MATERIAL | STEEL COMP 8740 OVERALL | | SPHERICAL DEPTH | 0.0620 INCHES MINIMUM AND 0.0680 INCHES MAXIMUM | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 10.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | SURFACE FINISH | 10.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | SURFACE FINISH | 10.0 MICROINCHES LEFT SIDE |
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