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 6645-01-528-0318
NSN 5915-00-263-2175
NSN 5960-01-071-0389
NSN 6320-01-261-2848
NSN 6130-01-140-9990
NSN 5990-01-320-9817
NSN 5895-01-242-5751
NSN 5855-01-461-8169
NSN 5975-01-245-4155
NSN 6220-00-165-7095
NSN 5990-01-357-6175
NSN 5990-00-076-9839