Rockwell hardness c 61-65
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 6145-00-823-3080
NSN 6650-00-658-9627
NSN 5945-00-959-0085
NSN 6685-01-521-3950
NSN 6645-01-143-0137
NSN 5975-01-199-4400
NSN 5930-00-074-1430
NSN 6620-01-610-5081
NSN 6650-01-616-9298
NSN 5920-01-342-3681
NSN 7035-01-218-6960
NSN 5930-01-454-2760