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 6645-01-650-1860
NSN 5999-01-590-1642
NSN 5915-01-633-9845
NSN 6610-01-133-2602
NSN 5985-00-610-1310
NSN 5985-01-055-6084
NSN 6135-01-151-2705
NSN 6150-01-466-1539
NSN 5965-00-137-2605
NSN 5945-00-818-1511
NSN 6620-00-357-1157
NSN 2925-01-580-1527