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 2925-00-388-8932
NSN 5835-00-289-9080
NSN 6130-00-442-0286
NSN 5975-01-162-6221
NSN 6650-01-458-6608
NSN 6645-01-383-6514
NSN 7035-00-018-0350
NSN 2925-00-172-9264
NSN 6240-00-906-4062
NSN 6240-00-682-3508
NSN 6645-00-800-3605
NSN 6130-01-370-2004