Differentiated by 1-1/4 in. Diameter hole
NSN 5965-01-288-0721
NSN 5975-01-535-1344
NSN 5945-00-044-1386
NSN 5985-01-634-0635
NSN 6610-01-416-8384
NSN 5905-00-909-5330
NSN 5910-01-345-8709
NSN 5835-00-111-2953
NSN 6240-00-222-0276
NSN 5935-01-317-3135
NSN 5975-01-196-5842
NSN 6130-01-426-1016