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 5960-01-205-0386
NSN 5835-01-319-0262
NSN 5925-00-059-4991
NSN 4140-01-235-6869
NSN 5985-01-021-4989
NSN 6105-00-557-2591
NSN 6105-01-512-1831
NSN 5855-00-896-4047
NSN 5895-01-239-4059
NSN 6130-01-348-6439
NSN 6320-01-090-8296
NSN 5920-00-483-4609