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 6620-01-105-5770
NSN 5835-01-302-2745
NSN 5925-01-253-5726
NSN 6145-01-571-7928
NSN 5910-01-519-2308
NSN 6145-01-529-4535
NSN 6105-01-157-3021
NSN 5930-01-450-3819
NSN 5960-01-075-2694
NSN 5905-01-529-6604
NSN 4140-00-753-0997
NSN 6150-01-369-3683