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 7035-00-238-3662
NSN 7035-01-340-7754
NSN 5905-01-282-3942
NSN 6650-01-158-4236
NSN 6110-01-431-6906
NSN 6150-01-514-0352
NSN 5965-01-381-4879
NSN 5996-01-069-2370
NSN 6650-00-031-8467
NSN 7035-01-222-0729
NSN 6130-01-534-4199
NSN 5915-01-403-2599