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 5990-01-452-0911
NSN 6610-01-136-4866
NSN 5965-00-199-4456
NSN 5975-00-432-0346
NSN 6150-01-301-8185
NSN 5835-00-532-5910
NSN 5990-01-027-1869
NSN 5960-00-254-4271
NSN 5975-01-240-3256
NSN 5835-00-334-6556
NSN 5905-00-451-7947
NSN 4140-01-152-8612