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 6105-00-463-9108
NSN 6150-00-081-2063
NSN 2925-01-029-0467
NSN 6610-01-595-2847
NSN 5910-01-063-4357
NSN 6650-01-578-0007
NSN 6320-01-006-6138
NSN 5965-01-042-2001
NSN 5999-01-569-1520
NSN 6145-01-498-0113
NSN 5935-00-588-6635
NSN 5910-01-633-9963