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 5960-01-599-9821
NSN 5996-01-118-9475
NSN 5930-01-036-6671
NSN 6135-01-260-7180
NSN 6220-01-245-9242
NSN 5998-01-629-3880
NSN 5855-00-532-0025
NSN 5999-00-344-8652
NSN 5910-00-186-2446
NSN 5999-01-200-7797
NSN 5985-01-422-5092
NSN 5905-00-644-9983