3120-01-256-0446 BUSHING,SLEEVE Index 5307-01-256-0448 STUD,SHOULDERED

National Stock Number:
3120-01-256-0447

Federal Supply Class:
3120

National Item Identification Number:
012560447

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.


Manufacturer Information:
3422030-0151398ATRENNE COMPUTING SOLUTIONS, LLC
74B059512-20176301THE BOEING COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
DIAMETER0.0580 INCHES NOMINAL
OUTSIDE DIAMETER0.1030 INCHES NOMINAL
MATERIALCOPPER ALLOY INTERMEDIATE LAYER
MATERIALLEAD AND TIN INNER LAYER
MATERIALLEAD AND TIN OUTER LAYER
STYLE DESIGNATORROUND


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