3120-01-009-2266 BUSHING,SLEEVE Index 4820-01-009-2268 VALVE,CHECK

National Stock Number:
3120-01-009-2267

Federal Supply Class:
3120

National Item Identification Number:
010092267

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:
516795-26JRD9WELLMAN DYNAMICS MACHINING AND ASSEMBLY, INC.
516795-280020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CRITICALITY CODE JUSTIFICATIONAGAV
DIAMETER12.5990 INCHES MINIMUM AND 12.6040 INCHES MAXIMUM
OUTSIDE DIAMETER17.6200 INCHES MINIMUM AND 17.6300 INCHES MAXIMUM
STYLE DESIGNATORROUND
SURFACE FINISH125.0 MICROINCHES OVERALL


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