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 6645-01-023-2180
NSN 5920-01-054-5315
NSN 5835-00-228-9082
NSN 5950-01-097-2157
NSN 5920-01-423-0805
NSN 6110-01-525-3726
NSN 5905-00-146-0078
NSN 5990-00-951-3124
NSN 5930-01-045-8439
NSN 2925-01-026-1000
NSN 5920-01-406-5195
NSN 6135-01-342-3859