The ring has a diameter of 1.2500 inches
NSN 6685-01-355-7377
NSN 6135-01-419-2794
NSN 5998-01-115-0135
NSN 6150-00-217-0475
NSN 6650-00-710-8130
NSN 6105-01-224-8899
NSN 5920-01-065-1824
NSN 6130-00-738-7290
NSN 5930-00-222-6475
NSN 4140-01-093-6435
NSN 5895-01-154-9816
NSN 5990-00-905-6472