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 5895-00-930-8079
NSN 5985-01-141-8027
NSN 6130-00-466-2019
NSN 6110-01-364-1857
NSN 4140-01-124-8549
NSN 5950-00-787-3704
NSN 5945-00-113-7401
NSN 6645-01-204-4653
NSN 5965-00-450-5408
NSN 5996-01-144-3485
NSN 5990-01-368-9117
NSN 6220-01-474-8523