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 5910-00-660-9464
NSN 6130-01-159-4826
NSN 6130-01-204-2829
NSN 6320-00-004-9158
NSN 5855-01-491-0140
NSN 5996-01-080-5957
NSN 5960-01-487-2175
NSN 5855-01-175-2465
NSN 6320-01-532-7491
NSN 5835-00-373-2671
NSN 6220-01-286-6720
NSN 7035-00-523-7492