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 5950-01-125-5374
NSN 5985-01-349-9183
NSN 5905-00-035-4340
NSN 6620-01-322-8382
NSN 6320-01-478-9351
NSN 5999-01-541-9129
NSN 5930-01-374-1747
NSN 5999-01-594-0115
NSN 6135-00-112-8637
NSN 6135-01-551-0562
NSN 5935-01-226-8498
NSN 5895-01-391-4554