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 6150-01-010-4155
NSN 5930-01-198-5394
NSN 5920-01-336-7568
NSN 5985-01-410-7753
NSN 6220-01-536-8165
NSN 5915-00-091-1178
NSN 5999-00-004-2801
NSN 6130-01-625-8107
NSN 4140-01-411-5908
NSN 5925-00-902-3240
NSN 6145-01-350-2886
NSN 6610-01-152-2821