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.
Dept. of the Navy 
Spain Classification: Parts, nesoi, for roller bearings or for combined ball/roller bearings, nesoi
NSN 6650-00-252-2541
NSN 5935-01-521-6072
NSN 6105-00-752-2560
NSN 5835-00-166-9413
NSN 5935-01-391-7821
NSN 5985-00-964-3547
NSN 5915-00-659-3107
NSN 7035-01-470-8609
NSN 5925-01-479-2632
NSN 5950-01-070-4001
NSN 5985-01-617-7996
NSN 6320-00-823-2015