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 5925-01-045-8050
NSN 6145-01-656-3903
NSN 5996-01-560-5052
NSN 6610-01-170-2905
NSN 5945-01-443-4022
NSN 4140-01-197-8148
NSN 6135-01-387-0754
NSN 5910-01-227-9977
NSN 6685-01-363-5820
NSN 5935-01-208-4771
NSN 6220-01-344-0909
NSN 5895-01-162-2299