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 6105-00-585-4634
NSN 6150-01-233-9185
NSN 6135-01-469-6429
NSN 6645-01-272-6987
NSN 6220-00-477-4109
NSN 5950-00-960-0220
NSN 5985-00-036-8287
NSN 5905-00-469-4783
NSN 5925-01-600-2173
NSN 5910-01-025-9067
NSN 5996-01-054-3226
NSN 5895-01-579-6579