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 5950-01-357-5583
NSN 5935-00-946-0479
NSN 6145-01-502-9150
NSN 5996-01-423-9423
NSN 5935-01-450-8448
NSN 6685-01-280-5181
NSN 5975-01-415-4283
NSN 5910-01-320-6478
NSN 6650-01-448-9639
NSN 6150-01-454-2890
NSN 6135-01-490-7704
NSN 6220-01-192-8826