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 4140-01-298-3751
NSN 7035-01-423-8343
NSN 4140-01-135-0998
NSN 6110-00-071-8351
NSN 5895-01-462-0027
NSN 6645-01-236-6387
NSN 5950-01-463-3810
NSN 6320-01-388-1067
NSN 6110-00-833-2777
NSN 5930-01-585-4640
NSN 6150-01-472-2033
NSN 4140-01-462-7737