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 6150-01-104-7253
NSN 5950-01-167-1616
NSN 2925-01-510-9378
NSN 5965-01-446-4386
NSN 5965-00-825-4871
NSN 6610-01-060-7626
NSN 6145-01-555-8131
NSN 5895-01-571-5739
NSN 5895-01-103-4040
NSN 5999-00-939-7014
NSN 6620-01-032-3937
NSN 5985-01-616-9438