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 5990-01-654-6203
NSN 6610-01-599-4462
NSN 5945-01-258-5042
NSN 5895-01-255-2265
NSN 5990-01-379-2337
NSN 5998-01-211-6752
NSN 5960-01-310-3863
NSN 6610-00-919-3875
NSN 5930-01-167-7741
NSN 5999-00-925-4361
NSN 5935-01-654-7692
NSN 6145-01-032-4557