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 5855-01-020-7982
NSN 2925-00-234-7918
NSN 5915-01-472-7169
NSN 6610-01-444-8881
NSN 6620-01-510-3501
NSN 5998-01-107-6550
NSN 6150-01-023-1516
NSN 5985-01-237-1155
NSN 5960-01-147-8842
NSN 5996-01-425-7097
NSN 5855-01-020-7982
NSN 6105-01-319-0144