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 6610-01-258-7059
NSN 5965-00-706-7005
NSN 6135-01-442-7275
NSN 7035-01-294-2688
NSN 5905-01-501-1053
NSN 5990-01-548-3711
NSN 2925-00-856-0115
NSN 6685-01-556-9735
NSN 6220-01-459-8017
NSN 6650-00-224-3223
NSN 6110-01-242-3341
NSN 6650-01-632-0521