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National Stock Number:
3120-00-311-8201
Federal Supply Class:
3120
National Item Identification Number:
003118201
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.
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Manufacturer Information:
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Techincal Specification:
| ANTIROTATION/LUBRICATION TYPE AND QUANTITY | 2 HOLE | | BODY INSIDE DIAMETER | 3.8870 INCHES MINIMUM AND 3.8900 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 4.3750 INCHES MINIMUM AND 4.3770 INCHES MAXIMUM | | CORNER SHAPE | SQUARE ALL CORNERS | | HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL | | HOLE DIAMETER | 0.3480 INCHES NOMINAL FIRST | | LUBRICANT ACCOMMODATION STYLE | GROOVED CLOSED BOTH ENDS | | OVERALL LENGTH | 4.5000 INCHES MINIMUM AND 4.5050 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY OVERALL | | SPECIAL FEATURES | DRILLED HOLES 1 IN. FROM ONE END | | STYLE DESIGNATOR | SOLID, PLAIN, NO OUTSIDE FLANGES | | SURFACE GROOVE LOCATION AND QUANTITY | 1 INTERNAL |
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