Flat, round
NSN 5990-01-459-5482
NSN 6150-01-136-9309
NSN 5930-00-157-1382
NSN 5945-00-187-7764
NSN 6105-00-489-6225
NSN 5950-01-438-6950
NSN 6150-01-481-2175
NSN 4140-01-193-4841
NSN 6105-00-658-6053
NSN 6240-01-553-2231
NSN 5990-01-578-5382
NSN 5920-01-139-5368