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 6645-01-093-5015
NSN 5990-00-446-0518
NSN 2925-01-458-5808
NSN 5990-00-538-7330
NSN 5915-00-070-6131
NSN 5915-01-549-3131
NSN 5930-01-336-0226
NSN 5895-01-376-4538
NSN 5996-00-855-0941
NSN 6105-01-358-4035
NSN 6135-00-152-8729
NSN 6135-01-339-8064