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 5965-00-378-3403
NSN 5990-01-030-1034
NSN 5930-00-801-6562
NSN 5915-00-801-3538
NSN 6685-01-258-3218
NSN 6135-01-545-5519
NSN 6135-00-351-8606
NSN 6685-01-222-3456
NSN 6610-00-186-9180
NSN 6320-01-072-2073
NSN 5965-01-633-8849
NSN 5985-01-385-6632