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 6130-00-905-1179
NSN 6240-01-643-3523
NSN 6145-01-502-5801
NSN 5935-01-235-1864
NSN 5915-00-904-9157
NSN 6130-01-354-7583
NSN 6650-01-180-6834
NSN 5950-01-232-2119
NSN 6130-00-174-8605
NSN 5965-01-141-6485
NSN 5950-00-802-9009
NSN 5925-01-366-6001