4140-01-487-8240 GUARD,FAN IMPELLER Index 4020-01-487-8243 ROPE,FIBROUS

National Stock Number:
3120-01-487-8242

Federal Supply Class:
3120

National Item Identification Number:
014878242

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:
1482071253711NAVAL SEA SYSTEMS COMMAND
581-672688853711NAVAL SEA SYSTEMS COMMAND
581-6726888 FIND 1453711NAVAL SEA SYSTEMS COMMAND
T902060038THE TIMKEN CORPORATION


Techincal Specification:
CORNER SHAPESQUARE ALL CORNERS
PROPRIETARY CHARACTERISTICSPACS
OVERALL LENGTH17.0000 INCHES NOMINAL
WIDTH3.4950 INCHES NOMINAL
STYLE DESIGNATORRECTANGULAR


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