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 5985-00-241-9282
NSN 5835-00-092-1136
NSN 6650-01-145-5173
NSN 5935-01-053-3880
NSN 6150-00-171-9455
NSN 6220-00-866-1346
NSN 5965-00-452-0967
NSN 6610-01-658-3664
NSN 6135-01-111-1495
NSN 4140-00-044-1329
NSN 6135-01-508-3784
NSN 6220-01-301-5411