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 4140-01-325-4031
NSN 5855-01-441-0401
NSN 6240-01-337-2509
NSN 6240-01-447-3779
NSN 5998-01-408-4676
NSN 5935-01-239-2102
NSN 5930-01-355-9830
NSN 5905-01-134-8717
NSN 6320-00-937-5625
NSN 6620-00-969-3972
NSN 7035-01-412-3692
NSN 5996-00-417-9706