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 6220-00-757-2025
NSN 5895-00-605-0811
NSN 5965-00-942-1602
NSN 6610-00-225-9886
NSN 5985-01-244-2999
NSN 5925-00-170-4090
NSN 5999-01-265-9296
NSN 6685-00-358-8331
NSN 6610-00-371-5953
NSN 5998-00-875-0825
NSN 5960-01-495-0859
NSN 6645-01-322-8431