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 5920-01-087-9840
NSN 6320-01-338-6006
NSN 5905-01-477-7152
NSN 6145-01-483-1292
NSN 5935-01-068-7486
NSN 5935-01-596-3548
NSN 5925-01-554-4936
NSN 5985-01-081-0222
NSN 6135-01-431-6801
NSN 5998-00-155-9703
NSN 5998-01-110-3503
NSN 5985-01-587-9524