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 5975-01-443-5554
NSN 5915-01-319-9062
NSN 5998-01-371-3094
NSN 4140-00-862-5644
NSN
NSN 5920-00-628-2258
NSN 6105-00-075-9786
NSN 5935-01-269-9112
NSN 5930-01-182-7250
NSN 6320-01-484-7734
NSN 5999-00-172-8761
NSN 4140-00-907-0775