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 5985-00-300-7616
NSN 5990-01-443-2931
NSN 5950-01-528-7143
NSN 5985-01-123-6692
NSN 6610-01-098-7557
NSN 6220-01-514-3556
NSN 5996-01-066-0335
NSN 5985-01-492-0284
NSN 5930-01-028-5880
NSN 5920-01-401-5315
NSN 6240-00-121-7628
NSN 6650-01-112-6385