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 5945-00-836-1082
NSN 5985-00-618-9436
NSN 5905-00-782-7109
NSN 5960-01-395-9834
NSN 6220-00-885-4573
NSN 5855-01-351-7313
NSN 5835-01-631-3940
NSN 5990-00-975-5298
NSN 5999-01-301-6775
NSN 6685-01-531-0082
NSN 5855-01-535-7127
NSN 5920-01-540-3428