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National Stock Number:
3120-01-157-5757
Federal Supply Class:
3120
National Item Identification Number:
011575757
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:
| 321142 | 62983 | EATON AEROSPACE, LLC |
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Techincal Specification:
| DIAMETER | 0.6900 INCHES MINIMUM AND 0.6930 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | SHOULDERED | | FLANGE THICKNESS | 0.1550 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM | | MATERIAL | CARBON OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 1.2510 INCHES NOMINAL | | OVERALL THICKNESS | 0.1760 INCHES MINIMUM AND 0.1780 INCHES MAXIMUM | | SHANK OUTSIDE DIAMETER | 0.9000 INCHES NOMINAL | | SPECIAL FEATURES | TWO SQUARE KEYWAYS,LOCATED 180 DEG APART ON OD; 0.1450 IN. MIN,0.1500 IN. MAX W,0.0460 IN. DEEP | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY | | SURFACE FINISH | 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER | | SURFACE FINISH | 125.0 MICROINCHES SMALLEST OUTSIDE DIAMETER | | SURFACE FINISH | 125.0 MICROINCHES RIGHT SIDE OF FLANGE | | SURFACE FINISH | 16.0 MICROINCHES LEFT SIDE | | SURFACE FINISH | 4.0 MICROINCHES RIGHT SIDE |
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