3120-00-390-3791 BEARING,SLEEVE Index 2825-00-390-3793 HARDENED INSERT

National Stock Number:
3120-00-390-3792

Federal Supply Class:
3120

National Item Identification Number:
003903792

Description:
BEARING,SLEEVE

Detail:
A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also BUSHING, SLEEVE; SPACER, SLEEVE; and WASHER (as modified). Excludes PIN, HOLLOW.


Manufacturer Information:
127D821PC124446GENERAL ELECTRIC COMPANY
317514380064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
ANTIROTATION/LUBRICATION TYPE AND QUANTITY2 HOLE
BODY INSIDE DIAMETER4.0060 INCHES MINIMUM AND 4.0080 INCHES MAXIMUM
BODY OUTSIDE DIAMETER4.8750 INCHES MINIMUM AND 4.8760 INCHES MAXIMUM
CORNER SHAPESQUARE ALL CORNERS
HOLE DIAMETER0.2500 INCHES NOMINAL FIRST
LUBRICANT ACCOMMODATION STYLEGROOVED OPEN BOTH ENDS OR GROOVED CLOSED BOTH ENDS
OVERALL LENGTH4.0000 INCHES NOMINAL
MATERIALSTEEL OUTER LAYER
MATERIALTIN ALLOY INNER LAYER
STYLE DESIGNATORSEGMENTED, PLAIN, NO OUTSIDE FLANGES
SURFACE FINISH32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH63.0 MICROINCHES LEFT END SURFACE OF BODY
SURFACE FINISH63.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE GROOVE LOCATION AND QUANTITY1 INTERNAL AND 2 EXTERNAL


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