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 5920-01-223-0118
NSN 6645-01-053-3185
NSN 5950-01-021-1269
NSN 6220-01-371-8185
NSN 6240-01-633-9357
NSN 6145-01-501-6174
NSN 5925-01-613-3747
NSN 5990-00-308-2538
NSN 6645-00-810-7229
NSN 5930-01-502-6910
NSN 5935-00-203-1292
NSN 6610-01-023-4433