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 5996-00-218-1123
NSN 6685-01-173-6987
NSN 5975-01-508-4456
NSN 5925-00-899-4065
NSN 5895-01-452-3015
NSN 6240-01-128-9084
NSN 6650-00-133-7884
NSN 5960-00-089-6651
NSN 5945-00-023-8592
NSN 5935-00-269-5516
NSN 5855-01-364-1005
NSN 5915-01-604-9404