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 5985-00-369-0649
NSN 6320-01-450-5510
NSN 5985-01-297-5989
NSN 6145-01-474-5459
NSN 5855-01-590-5087
NSN 5835-01-411-7050
NSN 5920-01-428-9220
NSN 5895-00-563-1573
NSN 5999-00-271-6262
NSN 5996-00-279-5806
NSN 6650-00-668-5703
NSN 5960-01-605-9921