Astm a36 steel plate, 1.5in.Thk; 2pc, each 4.81in.By 9.62in., o/a 9.62in.Sq w/1.00in radius outside corners, inside opening creates 5.63in.Dia
NSN 6110-01-361-9978
NSN 5996-01-605-3377
NSN 5895-01-433-0300
NSN 5920-01-318-6649
NSN 6610-00-931-3655
NSN 6220-01-108-7280
NSN 5935-01-283-3314
NSN 5920-01-148-1042
NSN 6150-01-292-9351
NSN 5996-01-076-1662
NSN 5915-00-777-1708
NSN 6320-00-343-1798