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 6150-01-258-6293
NSN 6685-00-088-0059
NSN 5935-01-468-5869
NSN 5915-00-661-2223
NSN 6620-00-241-5264
NSN 5910-00-484-7985
NSN 5985-01-532-4767
NSN 5910-00-485-7820
NSN 5950-01-517-4356
NSN 5985-01-384-3847
NSN 5990-01-579-2711
NSN 5855-01-070-4072