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 5999-01-556-9253
NSN 6240-00-594-7138
NSN 5920-00-593-6496
NSN 5996-01-115-8509
NSN 6650-01-329-3055
NSN 6320-01-354-6204
NSN 6105-00-587-9488
NSN 6150-00-900-8620
NSN 6610-01-010-4516
NSN 5996-00-498-1615
NSN 6620-01-195-4602
NSN 5945-01-544-3300