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National Stock Number:
3120-00-795-9578
Federal Supply Class:
3120
National Item Identification Number:
007959578
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:
| 157D10862 | 75377 | KURZ & ROOT GENERATOR COMPANY, LLC | | 157D1862 | 75377 | KURZ & ROOT GENERATOR COMPANY, LLC | | 19233 | 89923 | NAPCO INDUSTRIES INC DIESEL ENGINE DIV | | 7023 | 93742 | DRS NAVAL POWER SYSTEMS INC | | 19233 | 95201 | NAPCO INTERNATIONAL LLC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 0.9970 INCHES MINIMUM AND 0.9980 INCHES MAXIMUM | | FEATURES PROVIDED | CASEHARDENED | | HARDNESS RATING | 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL | | OUTSIDE DIAMETER | 1.3070 INCHES MINIMUM AND 1.3170 INCHES MAXIMUM | | OVERALL THICKNESS | 0.1240 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1212 OVERALL | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | SURFACE FINISH | 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | SURFACE FINISH | 32.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 32.0 MICROINCHES RIGHT SIDE |
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