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 5999-01-384-4367
NSN 5945-01-027-8480
NSN 5999-01-573-8307
NSN 6110-01-058-2476
NSN 2925-00-404-6461
NSN 5910-01-462-3119
NSN 5999-01-441-9732
NSN 5975-00-939-8736
NSN 6145-01-483-1905
NSN 5998-01-490-3453
NSN 5915-01-453-3225
NSN 5998-00-619-8577