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 5920-01-320-2494
NSN 5835-00-187-1481
NSN 6240-01-543-0193
NSN 6240-01-122-4263
NSN 5835-00-930-8500
NSN 6220-01-089-7185
NSN 4140-01-550-8908
NSN 6650-00-433-2349
NSN 6685-01-354-4475
NSN 5945-01-112-0841
NSN 4140-00-702-8678
NSN 5930-01-447-2837