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 6130-01-229-1052
NSN 5965-01-209-2838
NSN 2925-01-604-8984
NSN 6620-00-932-6508
NSN 5935-00-851-8324
NSN 5998-01-123-9687
NSN 5965-00-504-3779
NSN 5975-01-497-7594
NSN 6105-01-290-4738
NSN 4140-01-164-2274
NSN 5950-01-170-8108
NSN 6685-01-600-0433