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 5950-00-760-6805
NSN 5985-01-511-8741
NSN 5925-01-598-7114
NSN 6105-01-543-5977
NSN 6135-00-998-5884
NSN 6130-01-143-2271
NSN 5925-00-262-6087
NSN 5975-00-820-1581
NSN 4140-01-331-2887
NSN 5925-00-377-6368
NSN 6150-01-545-1619
NSN 6240-00-633-1243