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 6645-00-148-8081
NSN 5960-01-599-9821
NSN 5999-01-465-6851
NSN 5930-01-595-2700
NSN 6135-00-057-2005
NSN 5990-00-263-1289
NSN 6620-01-167-0881
NSN 6150-01-232-0708
NSN 5999-01-218-4804
NSN 5920-01-146-4503
NSN 6105-00-260-6700
NSN 6320-01-412-2973