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 5835-01-225-0372
NSN 6135-01-592-4139
NSN 6320-01-098-2503
NSN 6130-01-400-6123
NSN 4140-01-415-5595
NSN 6150-01-511-7642
NSN 6685-01-599-0813
NSN 5960-01-544-1273
NSN 6320-01-006-6138
NSN 6105-01-176-3425
NSN 6645-00-602-5968
NSN 5985-01-523-2784