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 6145-00-347-1171
NSN 5998-01-507-7349
NSN 5999-00-241-5818
NSN 6135-01-077-5705
NSN 5910-01-324-4979
NSN 6645-01-429-6768
NSN 5945-01-279-1011
NSN 5945-01-469-9919
NSN 6150-01-341-4890
NSN 6110-01-382-9706
NSN 6240-00-482-1142
NSN 5996-00-357-2948