Flat, round
NSN 6685-01-582-8059
NSN 5985-01-178-4406
NSN 5950-01-555-7801
NSN 5935-00-914-3712
NSN 2925-01-474-3363
NSN 5950-01-233-3782
NSN 6135-01-098-3020
NSN 5935-01-204-3847
NSN 6135-00-377-9165
NSN 5999-01-030-5220
NSN 5999-00-737-0503
NSN 5910-00-488-7940