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 5985-00-379-2345
NSN 5895-00-015-3700
NSN 5920-01-445-9189
NSN 6320-00-521-9350
NSN 5855-01-074-3335
NSN 5985-01-044-1677
NSN 5998-01-602-2521
NSN 4140-00-846-3423
NSN 6685-01-522-5405
NSN 7035-00-312-3055
NSN 5920-01-226-7038
NSN 5915-01-645-4809