3 holes with 2 edm slots; no flaw, 0.2mm flaw, 0.5mm flaw; 12.0mm diameter holes
NSN 5920-00-206-3595
NSN 5985-00-608-9137
NSN 6105-01-054-7041
NSN 6130-00-968-7562
NSN 4140-00-497-8402
NSN 5895-01-643-6222
NSN 6650-00-557-5482
NSN 6105-00-338-9436
NSN 5895-00-105-6597
NSN 6145-01-145-4037
NSN 6620-01-642-1843
NSN 6110-00-869-4108