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 2925-01-482-8202
NSN 5996-01-297-7671
NSN 5985-01-392-9833
NSN 6220-01-155-6521
NSN 5935-00-928-7846
NSN 5915-00-583-4970
NSN 6150-00-288-6245
NSN 6150-01-653-1345
NSN 6220-01-159-0442
NSN 5996-00-803-6475
NSN 5910-01-463-9061
NSN 6145-00-481-8737