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 5985-01-152-2022
NSN 5935-00-755-3852
NSN 5835-01-498-9410
NSN 6650-01-549-0341
NSN 6685-01-347-4648
NSN 6685-01-434-8906
NSN 6685-01-231-2079
NSN 5910-01-226-2572
NSN 6145-01-628-2027
NSN 5990-00-689-5736
NSN 5895-01-019-0279
NSN 6685-01-653-9538