A fitting with pipe threads having a female connection inside of a male connection, used in conjunction with another fitting, to connect in the same line, two pipes of different sizes.
NSN 7035-01-312-3577
NSN 7035-00-299-7150
NSN 6150-01-237-1470
NSN 6240-01-640-8139
NSN 5905-00-832-9466
NSN 6650-01-228-5094
NSN 6610-01-372-8170
NSN 5945-01-258-3951
NSN 5855-01-542-9059
NSN 5985-00-317-8237
NSN 5915-01-155-7832
NSN 5950-01-564-3676