Rockwell hardness c 61-65
A metallic item, cylindrical, with or without a flange at one end. It is designed to be inserted into a hole to reduce friction and/or the inside diameter of the hole, and protect the surrounding body structure from damage resulting from stress, strain and/or vibration. It must have a through hole parallel to its axis. It is designed for subsequent drilling operation. For items that are tapered see bushing (1), tapered. Excludes bushing, sleeve.
Classification: Drilling, threading or tapping tools and parts thereof, base metal
NSN 5915-00-248-5824
NSN 5965-00-961-1627
NSN 5960-00-752-6175
NSN 5975-00-851-6085
NSN 6320-01-415-0953
NSN 6610-00-921-1066
NSN 5935-01-374-4682
NSN 6320-00-149-7570
NSN 7035-01-292-7439
NSN 5960-01-177-0338
NSN 4140-01-400-3610
NSN 5990-01-548-5979