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 
Spain Classification: Parts, nesoi, for roller bearings or for combined ball/roller bearings, nesoi
NSN 5920-00-683-7883
NSN 6650-00-382-4790
NSN 5935-00-006-9036
NSN 5965-01-423-2204
NSN 6150-00-259-2791
NSN 6620-01-401-5356
NSN 5895-01-573-4492
NSN 5985-01-323-6686
NSN 7035-00-803-3056
NSN 6650-01-335-9825
NSN 5990-00-038-6482
NSN 5999-01-147-2127