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 5990-01-257-6854
NSN 6130-01-554-3168
NSN 5905-00-473-1860
NSN 6135-01-425-5553
NSN 5950-01-434-7937
NSN 6130-00-916-1405
NSN 6610-01-302-2073
NSN 5910-00-642-6741
NSN 5895-00-955-5569
NSN 6685-00-492-6230
NSN 5975-01-646-3830
NSN 5950-00-627-0503