Reverse mounted
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 5895-01-513-8870
NSN 5945-01-428-9943
NSN 5925-00-729-0578
NSN 6135-00-461-3590
NSN 5999-00-296-8870
NSN 6220-00-193-3278
NSN 5835-00-034-4976
NSN 6240-01-513-9642
NSN 6610-00-853-5657
NSN 6150-01-563-7244
NSN 6610-01-023-6073
NSN 6610-00-613-5420