1 hole 0.406 in. Dia
NSN 6105-00-758-4190
NSN 6240-00-764-1580
NSN 6650-01-242-2377
NSN 6610-01-507-1956
NSN 5985-00-023-9324
NSN 5975-01-068-3705
NSN 6150-01-411-4744
NSN 5910-00-973-0090
NSN 6110-01-462-1698
NSN 5915-01-411-6202
NSN 5920-00-068-5139
NSN 6130-00-361-1774