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 5920-01-531-1137
NSN 5945-00-740-4329
NSN 5999-00-101-7672
NSN 6220-01-218-0847
NSN 6610-00-684-7683
NSN 5855-01-522-4471
NSN 6105-01-461-9317
NSN 6645-00-479-9334
NSN 5905-00-834-3093
NSN 6105-00-392-1919
NSN 5998-00-580-8887
NSN 5998-01-381-1394