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 6240-00-731-5071
NSN 6240-00-890-5814
NSN 5935-01-501-2021
NSN 5910-01-397-8532
NSN 5930-01-651-2319
NSN 5905-01-633-2224
NSN 5895-01-106-2198
NSN 5835-00-783-6620
NSN 5998-00-525-2654
NSN 5930-00-792-2929
NSN 7035-01-322-8180
NSN 5835-01-203-8295