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 5950-01-380-0113
NSN 6240-01-530-3040
NSN 6650-01-327-5113
NSN 6220-01-551-1032
NSN 6645-01-378-3417
NSN 5930-01-352-3442
NSN 5950-00-186-0682
NSN 5985-01-438-2713
NSN 6620-01-026-0346
NSN 6650-01-424-0762
NSN 5998-01-577-4010
NSN 5930-01-216-5512