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 6105-01-518-8943
NSN 5855-01-356-5284
NSN 6240-00-827-0889
NSN 6240-01-360-9575
NSN 7035-00-251-8201
NSN 6130-01-570-0839
NSN 5925-01-166-5671
NSN 6135-01-382-9278
NSN 6130-00-711-0528
NSN 6620-01-162-2839
NSN 6685-01-176-3649
NSN 5835-01-245-8077