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 5905-01-502-4561
NSN 5998-01-513-1425
NSN 5999-00-783-8003
NSN 4140-01-434-3013
NSN 5910-01-165-9900
NSN 4140-00-718-6036
NSN 6135-01-459-0089
NSN 5965-01-390-9249
NSN 6240-01-147-5115
NSN 6105-00-866-2740
NSN 5915-00-284-5430
NSN 6110-01-540-6041