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 5990-01-126-5824
NSN 5905-00-905-4110
NSN 5930-01-015-1299
NSN 5965-00-100-1291
NSN 6620-00-754-4914
NSN 5935-00-206-1400
NSN 6650-01-475-2822
NSN 5990-00-281-4164
NSN 6135-01-293-3066
NSN 5965-00-920-0455
NSN 6110-01-607-0891
NSN 5975-01-255-0081