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 5950-01-040-7844
NSN 5985-01-153-0781
NSN 5990-00-181-2220
NSN 5895-00-218-1355
NSN 6620-00-572-8787
NSN 5930-01-550-5696
NSN 5975-00-144-7878
NSN 5998-00-194-7640
NSN 6220-00-595-6954
NSN 5930-00-840-7883
NSN 5999-00-987-5455
NSN 6620-00-602-5832