2990-00-386-2907 VALVE,POPPET,ENGINE Index 2990-00-386-2909 BEARING,SLEEVE

National Stock Number:
3120-00-386-2908

Federal Supply Class:
3120

National Item Identification Number:
003862908

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:
6B621011083CATERPILLAR INC


Techincal Specification:
ANTIROTATION/LUBRICATION TYPE AND QUANTITY4 HOLE
BODY INSIDE DIAMETER3.8800 INCHES MINIMUM AND 3.8820 INCHES MAXIMUM
BODY OUTSIDE DIAMETER4.2520 INCHES MINIMUM AND 4.2550 INCHES MAXIMUM
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
HARDNESS RATING58.0 ROCKWELL E MINIMUM AND 78.0 ROCKWELL E MAXIMUM OVERALL
MATERIALCOPPER ALLOY OVERALL
PROPRIETARY CHARACTERISTICSPACS
OVERALL LENGTH3.2813 INCHES NOMINAL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES


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