A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes bushing, drill, jig.
Dept. of the Air Force 
Dept. of the Navy 
Spain Classification: Parts, nesoi, for cylindrical roller bearings, nesoi
NSN 5965-01-100-2591
NSN 5996-01-151-1607
NSN 6145-01-216-4388
NSN 5996-01-105-0382
NSN 5950-01-282-6030
NSN 5920-01-155-7685
NSN 6110-01-329-3560
NSN 7035-01-240-4998
NSN 5975-01-597-5361
NSN 6320-01-072-2073
NSN 6220-01-277-8297
NSN 5910-01-221-3967