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 6610-01-542-2276
NSN 5985-01-614-3844
NSN 6220-01-520-6281
NSN 5895-00-564-6052
NSN 5950-01-394-5352
NSN 6135-01-460-8830
NSN 7035-01-559-4016
NSN 7035-01-515-7055
NSN 6105-00-929-8138
NSN 5910-01-068-9348
NSN 5999-01-431-7323
NSN 5999-01-213-4230