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 6240-01-242-9138
NSN 5835-00-023-0780
NSN 5915-01-400-6125
NSN 5925-01-285-0396
NSN 7035-00-406-0568
NSN 5915-01-555-8852
NSN 5990-00-702-1990
NSN 6145-01-624-1167
NSN 2925-01-648-6859
NSN 6110-01-411-5369
NSN 6105-01-649-9136
NSN 2925-01-471-3365