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 5975-00-827-7426
NSN 5960-01-436-8150
NSN 6130-01-132-0199
NSN 5975-00-257-8055
NSN 5835-00-868-8815
NSN 7035-00-173-2281
NSN 5945-01-270-6105
NSN 5930-01-025-1959
NSN 6150-00-338-8953
NSN 5960-01-422-3269
NSN 7035-01-577-2389
NSN 6220-01-516-9214