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 2925-00-909-2596
NSN 5990-01-242-9653
NSN 6685-00-290-8195
NSN 5930-01-349-4489
NSN 5935-01-253-0613
NSN 5998-01-592-2282
NSN 5895-00-998-1199
NSN 6150-00-935-2706
NSN 4140-01-295-3226
NSN 6320-01-551-3553
NSN 5950-00-199-9654
NSN 5950-00-513-9596