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 5905-01-490-6339
NSN 6650-00-238-1199
NSN 5996-01-129-4873
NSN 5910-01-551-6165
NSN 5985-01-184-6927
NSN 5945-00-025-7843
NSN 5930-01-564-7037
NSN 6130-01-453-4840
NSN 5835-00-085-2287
NSN 5835-00-583-1316
NSN 5975-01-206-9660
NSN 6105-01-555-7874