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 5920-01-038-7388
NSN 5895-01-245-7388
NSN 5920-01-150-3499
NSN 7035-01-413-6697
NSN 6620-01-012-2852
NSN 5999-00-875-2417
NSN 7035-01-088-6415
NSN 6150-01-413-5512
NSN 6105-01-139-5976
NSN 6320-00-546-9249
NSN 6610-01-532-3899
NSN 6145-01-442-6064