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 5855-01-486-9924
NSN 5999-00-471-2561
NSN 6150-01-651-3037
NSN 6620-01-059-0876
NSN 6145-01-415-3763
NSN 5960-01-219-5504
NSN 5998-01-417-9077
NSN 5930-01-501-6973
NSN 6685-01-369-8582
NSN 5950-01-269-8302
NSN 5930-01-186-9034
NSN 5985-01-506-7711