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 6150-00-852-7040
NSN 6610-01-076-4800
NSN 5996-00-824-1200
NSN 5920-00-984-6360
NSN 5915-01-422-0564
NSN 2925-01-387-0870
NSN 5998-00-828-4059
NSN 5920-01-264-3171
NSN 6110-01-544-0054
NSN 6610-00-281-9516
NSN 5915-01-069-7162
NSN 6110-01-224-2097