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 6650-01-314-5073
NSN 5855-01-341-7320
NSN 5950-00-518-7559
NSN 5855-00-631-4565
NSN 6135-01-301-8776
NSN 5999-01-424-0713
NSN 6645-01-122-9430
NSN 2925-01-197-7864
NSN 5975-01-530-0776
NSN 5990-01-408-6554
NSN 5925-01-578-5971
NSN 6130-01-598-7770