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 5930-01-357-8240
NSN 5990-01-641-1492
NSN 6105-01-443-2980
NSN 2925-00-247-6248
NSN 5950-01-276-4700
NSN 6685-00-849-6374
NSN 5895-00-244-0943
NSN 6240-00-493-3693
NSN 5945-01-223-7384
NSN 5950-01-160-7625
NSN 5999-01-572-6035
NSN 6105-00-692-4468