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 6220-01-308-6218
NSN 6650-01-014-7671
NSN 6610-00-225-9886
NSN 5945-01-167-5147
NSN 6645-01-495-5553
NSN 6685-00-371-8936
NSN 5998-01-400-6739
NSN 5915-01-430-2228
NSN 5895-01-024-6854
NSN 5975-01-575-5433
NSN 5950-01-573-0109
NSN 5895-01-237-4496