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 2925-01-190-3121
NSN 4140-01-540-4017
NSN 7035-01-202-8172
NSN 5996-01-071-8968
NSN 5930-00-244-0171
NSN 5915-01-615-1675
NSN 5925-01-334-0139
NSN 5950-01-586-6566
NSN 6650-00-294-0881
NSN 5985-00-923-1369
NSN 5999-00-289-1472
NSN 5965-01-482-0235