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 5950-01-279-8375
NSN 5935-00-642-5798
NSN 6240-01-289-9898
NSN 6110-01-430-2408
NSN 5965-00-739-2063
NSN 5935-00-929-8832
NSN 2925-01-582-8156
NSN 5935-00-707-0740
NSN 6240-00-397-3864
NSN 5855-00-145-3307
NSN 5835-01-268-1924
NSN 5920-00-103-7642