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 5910-01-581-2406
NSN 6650-01-399-8552
NSN 5925-01-020-7706
NSN 5975-00-244-6118
NSN 5895-00-269-3848
NSN 6130-00-689-7616
NSN 5930-01-116-3346
NSN 7035-01-097-8704
NSN 5935-01-201-1401
NSN 5925-00-364-7969
NSN 5998-00-923-2361
NSN 5930-00-144-4994