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 6610-01-497-8271
NSN 2925-00-169-3775
NSN 6145-00-818-7155
NSN 5920-00-226-7148
NSN 6220-01-450-9542
NSN 5920-01-444-1700
NSN 6150-01-605-1563
NSN 6240-01-411-5630
NSN 6150-01-399-6139
NSN 6130-00-969-5804
NSN 6145-01-530-7171
NSN 5945-01-437-1009