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 6240-00-326-2966
NSN 6130-01-455-4530
NSN 5855-01-224-7975
NSN 6610-01-278-9704
NSN 6685-01-599-8468
NSN 6130-00-277-7321
NSN 6645-01-226-6573
NSN 5895-01-394-3885
NSN 5998-00-257-6018
NSN 6150-01-603-0291
NSN 5925-01-316-2466
NSN 5965-01-118-1416