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 5985-00-699-2520
NSN 6240-00-299-9819
NSN 5998-00-427-7845
NSN 5975-00-958-2019
NSN 6240-01-323-6512
NSN 6685-01-141-7034
NSN 5996-01-151-8546
NSN 5985-01-448-6988
NSN 2925-01-027-1293
NSN 5975-01-634-0678
NSN 6620-01-587-5972
NSN 6685-01-534-7702