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 5930-00-024-8545
NSN 5925-01-541-9251
NSN 4140-01-343-7302
NSN 5915-01-439-5539
NSN 5905-01-269-1094
NSN 6150-01-396-9948
NSN 5975-01-261-1652
NSN 5930-01-485-5132
NSN 6610-01-010-3159
NSN 5975-01-107-5884
NSN 5990-00-853-1123
NSN 5895-00-513-0249