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 5910-01-245-0720
NSN 6320-00-194-4252
NSN 5985-01-628-3879
NSN 6645-01-136-1491
NSN 5915-00-740-4336
NSN 5920-01-088-7958
NSN 5985-00-194-6012
NSN 5930-01-248-0111
NSN 5835-00-675-5159
NSN 5999-01-427-3702
NSN 5996-01-234-1138
NSN 5910-01-265-3082