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 5965-00-226-7870
NSN 5915-00-043-0371
NSN 6110-01-106-2708
NSN 6130-00-247-4782
NSN 5985-01-441-2285
NSN 5915-01-353-7974
NSN 6150-01-629-6805
NSN 6110-01-633-9660
NSN 5895-01-272-9529
NSN 5910-01-470-3653
NSN 5960-01-426-4242
NSN 5965-00-396-3411