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 5920-01-634-0250
NSN 6130-01-411-9914
NSN 6150-01-165-0575
NSN 5935-01-362-6691
NSN 6150-01-390-8753
NSN 7035-00-803-3056
NSN 6135-01-252-0315
NSN 5915-01-487-7703
NSN 5975-01-481-3858
NSN 6650-01-308-2002
NSN 5950-01-510-9445
NSN 6150-01-314-2893