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 2925-01-136-2551
NSN 6220-01-165-3635
NSN 5990-01-433-3786
NSN 5935-00-842-7886
NSN 6650-01-374-4923
NSN 5895-00-375-5351
NSN 6620-01-422-3522
NSN 5935-00-360-1968
NSN 5930-01-600-0260
NSN 6135-00-643-4843
NSN 5855-00-962-5792
NSN 2925-00-221-4977