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 5835-01-524-4731
NSN 6150-01-525-7992
NSN 6150-01-144-5259
NSN 6220-01-628-6680
NSN 6220-01-138-1622
NSN 5985-00-767-6315
NSN 5960-01-411-5217
NSN 6320-00-553-8427
NSN 6220-01-449-1239
NSN 6645-01-148-6920
NSN 6145-00-198-5675
NSN 5945-00-333-7998