The ring has a diameter of 1.2500 inches
NSN 5855-01-656-6808
NSN 6110-01-469-7980
NSN 6220-01-195-2093
NSN 6105-00-800-5333
NSN 5935-01-322-8562
NSN 6105-01-560-7802
NSN 6650-01-326-0689
NSN 6685-01-508-2249
NSN 5999-01-296-6312
NSN 5905-01-310-9606
NSN 6145-00-258-6977
NSN 6320-01-607-1491