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 2925-01-279-6692
NSN 5965-01-437-0905
NSN 5990-01-440-7135
NSN 7035-00-908-4933
NSN 6220-01-273-0934
NSN 6150-01-483-0525
NSN 5905-01-377-5034
NSN 2925-00-585-4024
NSN 5960-01-199-1157
NSN 6240-01-468-9344
NSN 6320-01-652-3806
NSN 5945-01-619-5431