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 5945-01-320-2501
NSN 5855-01-158-2709
NSN 5985-01-232-8941
NSN 5920-00-311-3953
NSN 6685-00-419-0643
NSN 5998-01-103-8436
NSN 5925-01-214-4130
NSN 6220-00-482-7544
NSN 6150-01-190-3250
NSN 5990-01-538-0923
NSN 5920-00-795-6665
NSN 6220-00-232-4436