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 5855-01-167-2162
NSN 5945-01-395-7970
NSN 6610-01-541-5034
NSN 5910-00-104-5953
NSN 5855-00-055-1579
NSN 5935-01-366-4233
NSN 5835-01-284-5689
NSN 5960-01-291-0479
NSN 6150-01-451-1306
NSN 6130-01-535-4524
NSN 6240-01-428-9410
NSN 6135-01-388-2761