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 7035-01-640-9595
NSN 5960-01-435-1167
NSN 5996-01-054-4954
NSN 6685-01-206-3847
NSN 6130-00-325-0748
NSN 5910-00-245-8750
NSN 5985-00-258-3205
NSN 5965-00-603-9306
NSN 5990-01-541-7671
NSN 5915-01-056-5141
NSN 5855-01-443-3970
NSN 6650-01-657-5108