1 hole 0.406 in. Dia
NSN 6105-00-776-5491
NSN 6150-01-152-3517
NSN 2925-01-055-9705
NSN 5996-01-257-2517
NSN 6685-01-157-1288
NSN 5998-01-409-2874
NSN 5998-00-244-8629
NSN 5855-00-361-0167
NSN 6105-00-897-5804
NSN 6645-01-352-5675
NSN 6130-00-364-7801
NSN 5855-01-468-4996