Cage 1kxf2 is the oem
A fitting in the form of the letter y with each branch usually fixed at 45 degrees (0.78539 radians) to the run. It has identical flanged ends.
NSN 5930-00-137-2718
NSN 5945-00-279-3223
NSN 6650-01-094-9378
NSN 5985-01-340-4533
NSN 6105-01-466-3116
NSN 5835-01-424-0054
NSN 5910-00-400-3395
NSN 5835-00-707-6266
NSN 6650-01-494-6338
NSN 6150-01-646-1863
NSN 6645-01-480-3962
NSN 5985-01-295-5041