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 5965-01-388-3492
NSN 6240-01-568-2495
NSN 7035-01-287-9817
NSN 6650-01-568-0299
NSN 5985-01-541-1416
NSN 5965-01-090-3573
NSN 6130-01-511-4099
NSN 6110-01-075-9380
NSN 5945-01-539-2650
NSN 6240-01-264-6637
NSN 6650-01-049-5361
NSN 5925-00-676-1797