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 
Brazil 
Turkey Classification: Parts, nesoi, for roller bearings or for combined ball/roller bearings, nesoi
NSN 6240-01-236-4423
NSN 5950-01-022-0502
NSN 4140-00-555-2579
NSN 5996-01-067-8303
NSN 6130-00-822-0777
NSN 7035-01-100-9295
NSN 6650-00-349-8732
NSN 5999-01-243-5619
NSN 5975-00-119-9182
NSN 6645-01-586-8296
NSN 5915-01-445-3415
NSN 6650-01-647-1086