Differentiated by 1-1/4 in. Diameter hole
NSN 6130-01-212-6506
NSN 5945-00-530-4913
NSN 5935-01-294-5871
NSN 5998-00-169-3743
NSN 5895-01-566-9459
NSN 5935-01-276-4274
NSN 6130-01-017-0502
NSN 5910-00-230-8982
NSN 6145-01-198-1898
NSN 5945-01-398-2758
NSN 5930-01-421-5742
NSN 5910-00-332-4286