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 5920-01-479-5808
NSN 5855-00-779-2854
NSN 5895-00-627-9705
NSN 2925-00-957-7329
NSN 5835-00-833-7080
NSN 5960-01-268-8674
NSN 5996-01-576-9852
NSN 5950-01-139-3908
NSN 5855-01-312-5160
NSN 6110-00-568-1431
NSN 5905-01-057-3625
NSN 5996-00-480-8112