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 6685-01-600-0433
NSN 6645-01-299-7806
NSN 5975-01-038-0596
NSN 6240-00-267-7428
NSN 6610-01-243-8506
NSN 5910-00-333-0329
NSN 6650-00-415-0273
NSN 5925-01-076-9934
NSN 6650-01-092-4525
NSN 6110-01-614-9725
NSN 5835-01-575-5053
NSN 4140-01-143-5397