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 6135-00-961-3603
NSN 6650-01-056-6440
NSN 5960-01-170-4057
NSN 5935-00-291-4910
NSN 6685-00-143-7281
NSN 6620-01-546-4942
NSN 6620-01-184-9210
NSN 5950-01-185-5811
NSN 5855-00-466-2309
NSN 6645-00-192-1152
NSN 5930-01-533-6133
NSN 5950-01-058-8240