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 6620-01-018-9488
NSN 5990-00-809-5286
NSN 6105-00-908-2822
NSN 7035-01-462-8701
NSN 6145-01-177-1842
NSN 6650-00-578-6543
NSN 7035-01-481-0676
NSN 5990-01-608-6914
NSN 6105-01-106-2631
NSN 5996-01-155-2467
NSN 5895-01-472-5024
NSN 6610-01-105-9520