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 5996-00-285-3727
NSN 6685-00-329-0598
NSN 5985-00-875-8060
NSN 6220-01-605-1346
NSN 5835-00-532-5910
NSN 5965-01-435-6644
NSN 5950-01-025-6732
NSN 6220-00-682-4848
NSN 2925-00-355-5130
NSN 5915-00-932-3040
NSN 5925-01-258-2129
NSN 6650-01-320-5628