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 6620-00-273-8735
NSN 5895-00-826-9004
NSN 6150-00-244-2646
NSN 6145-01-095-4138
NSN 6650-01-603-8177
NSN 5930-01-135-7872
NSN 5990-01-538-4880
NSN 6135-01-089-4888
NSN 5930-01-515-5582
NSN 5960-01-100-7381
NSN 4140-00-485-6139
NSN 6145-01-359-2378