3110-01-324-9555 BEARING,ROLLER,TRACK ROLLER Index 3120-01-324-9557 BUSHING,SLEEVE

National Stock Number:
3120-01-324-9556

Federal Supply Class:
3120

National Item Identification Number:
013249556

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:
MS17795-34596906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BODY INSIDE DIAMETER2.0025 INCHES MINIMUM AND 2.0040 INCHES MAXIMUM
BODY OUTSIDE DIAMETER2.5035 INCHES MINIMUM AND 2.5050 INCHES MAXIMUM
CORNER SHAPESQUARE ALL CORNERS
HARDNESS RATING30.0 ROCKWELL H MINIMUM AND 70.0 ROCKWELL H MAXIMUM OVERALL
OVERALL LENGTH1.7425 INCHES MINIMUM AND 1.7575 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5687,TYPE 1,GRADE 2 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-B-5687,TYPE 1,GRADE 1 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OR COPPER ALLOY 841 OVERALL
MATERIALOIL LUBRICATING LUBRICATION
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES


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