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 5835-01-010-3103
NSN 6620-01-560-4497
NSN 4140-00-832-2101
NSN 7035-00-238-3662
NSN 5910-01-464-9014
NSN 5996-00-078-7515
NSN 5930-00-449-6969
NSN 5960-01-506-7039
NSN 5998-01-468-5965
NSN 6110-01-422-2619
NSN 6150-01-308-3649
NSN 5985-01-639-8150