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 5950-01-471-8138
NSN 5935-01-175-8231
NSN 5910-00-487-3906
NSN 6685-01-319-0999
NSN 5945-00-566-7947
NSN 5930-01-040-7155
NSN 6130-00-288-1886
NSN 6240-01-299-2015
NSN 5998-00-950-4966
NSN 5965-01-535-5789
NSN 5998-01-501-6736
NSN 5950-01-494-9778