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 5925-00-731-1822
NSN 6110-01-361-8949
NSN 6650-00-877-1797
NSN 5996-01-100-6057
NSN 5950-00-194-4236
NSN 6220-00-672-4189
NSN 6135-01-581-8163
NSN 5930-01-509-0531
NSN 6135-01-463-2445
NSN 6130-00-613-5371
NSN 5835-01-186-4961
NSN 5975-01-388-2153