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 5965-00-255-3889
NSN 7035-01-555-3418
NSN 6240-01-082-8798
NSN 6645-01-437-5290
NSN 5996-00-209-9517
NSN 5920-01-229-0623
NSN 5985-00-376-5682
NSN 5935-00-775-6759
NSN 6650-01-115-7981
NSN 5930-01-009-6252
NSN 5905-00-463-0194
NSN 5945-01-323-5787