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 6150-01-453-7519
NSN 5835-01-339-0542
NSN 5985-01-227-5221
NSN 5920-01-264-4950
NSN 6650-01-145-5173
NSN 7035-01-200-4751
NSN 5998-00-916-1871
NSN 5910-00-190-8035
NSN 6105-01-249-8032
NSN 6150-00-724-4384
NSN 5945-01-487-0923
NSN 6130-01-508-2084