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 6150-01-452-9626
NSN 6135-01-449-2144
NSN 6610-01-400-3880
NSN 6150-00-936-5387
NSN 5990-01-453-3552
NSN 6320-01-072-2073
NSN 6610-01-502-5952
NSN 4140-00-660-8699
NSN 2925-01-254-3068
NSN 6130-01-112-0158
NSN 6620-01-350-0323
NSN 6130-01-124-5642