3 holes with 2 edm slots; no flaw, 0.2mm flaw, 0.5mm flaw; 4.0mm diameter holes
NSN 5915-00-801-6317
NSN 5855-01-027-8414
NSN 5985-01-360-5617
NSN 6105-01-265-8693
NSN 4140-01-054-3553
NSN 6135-01-294-2131
NSN 5960-00-556-9375
NSN 6645-01-103-6586
NSN 6650-01-029-5414
NSN 6240-01-274-4237
NSN 6220-01-322-8450
NSN 6105-00-553-8943