The ring has a diameter of 1.2500 inches
NSN 5950-01-489-7054
NSN 6135-01-244-3211
NSN 5945-01-109-4206
NSN 5975-01-219-9057
NSN 5855-00-494-9581
NSN 4140-01-228-3443
NSN 5996-01-237-3757
NSN 6240-01-589-2415
NSN 5950-00-869-2275
NSN 6110-00-223-2081
NSN 5910-01-381-3009
NSN 5985-01-519-9295