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 5950-01-043-8120
NSN 6650-00-008-3941
NSN 5950-00-018-2088
NSN 7035-00-076-4097
NSN 6610-00-273-9019
NSN 2925-01-163-6716
NSN 6650-01-181-6037
NSN 6220-01-444-4913
NSN 6220-01-258-2568
NSN 6135-00-284-1406
NSN 7035-00-155-9513
NSN 5999-00-203-5573