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 6320-01-504-3948
NSN 6650-01-426-4253
NSN 5998-00-169-4636
NSN 6130-01-162-9624
NSN 6320-01-627-8295
NSN 5910-01-083-7188
NSN 6320-00-116-3658
NSN 6145-00-354-6706
NSN 6240-01-255-2417
NSN 6620-00-218-4959
NSN 6150-01-528-7719
NSN 5895-01-049-1976