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 6145-00-286-9588
NSN 5999-01-010-8152
NSN 5910-00-853-6607
NSN 6620-01-088-1272
NSN 5895-00-140-0919
NSN 6610-00-364-7543
NSN 5910-01-261-8990
NSN 6105-00-263-1261
NSN 5925-01-112-0320
NSN 6145-01-463-7128
NSN 5905-00-997-2215
NSN 5895-01-384-9826