A trunicated cone-shaped metal item generally tapered along its entire peripheral length, with a centrally located hole. It may be split (cut) through the material parallel to the axis.
NSN 6320-01-380-7372
NSN 6145-01-144-5728
NSN 5925-00-900-0675
NSN 5930-00-474-3669
NSN 2925-01-139-5144
NSN 6135-01-124-2376
NSN 6620-00-118-1983
NSN 6150-00-037-5118
NSN 5935-01-649-6419
NSN 5910-01-502-6614
NSN 6220-01-393-2335
NSN 5835-01-624-5666