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 5925-01-258-9623
NSN 5998-01-428-2575
NSN 6220-01-453-7533
NSN 6645-01-074-4063
NSN 5925-01-433-2946
NSN 5996-00-514-7678
NSN 5925-01-021-5365
NSN 2925-00-251-0105
NSN 4140-01-244-0548
NSN 6240-00-398-0740
NSN 5915-00-774-8418
NSN 5835-01-495-0595