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 7035-01-145-5059
NSN 6130-01-394-5913
NSN 5920-00-081-4647
NSN 6145-01-406-5051
NSN 6320-01-116-3980
NSN 5855-01-529-3016
NSN 6150-00-308-2686
NSN 5998-01-186-3433
NSN 6240-01-463-8276
NSN 5990-00-518-0684
NSN 6105-00-771-5140
NSN 6650-00-992-4540