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 6105-01-631-6379
NSN 5835-00-387-4759
NSN 5965-01-025-5129
NSN 5895-00-014-3121
NSN 6150-01-118-8853
NSN 5935-01-623-9744
NSN 7035-01-192-2659
NSN 5915-01-200-9796
NSN 5905-01-620-8943
NSN 6130-00-804-6031
NSN 2925-01-238-9974
NSN 5996-01-454-4605