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 6320-01-377-5701
NSN 6110-01-076-5976
NSN 5985-01-391-9896
NSN 6685-01-272-5954
NSN 6220-01-558-0915
NSN 5965-00-406-9561
NSN 5855-01-278-4868
NSN 6130-00-340-9279
NSN 6110-00-216-6911
NSN 5965-00-058-6751
NSN 6145-01-521-9496
NSN 5990-00-819-9949