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 6650-01-096-6803
NSN 6240-01-234-7893
NSN 6220-00-829-8064
NSN 5910-01-446-6623
NSN 5930-01-261-7893
NSN 5905-01-576-9362
NSN 5905-00-274-3789
NSN 6130-01-574-4554
NSN 5945-01-155-7713
NSN 5910-01-435-6053
NSN 6145-00-008-1834
NSN 5998-01-225-5154