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 5835-00-723-2505
NSN 5975-00-783-8253
NSN 6135-01-309-8414
NSN 5999-01-628-4713
NSN 5855-00-106-1640
NSN 6240-01-124-5309
NSN 6135-01-534-3007
NSN 5895-00-391-4951
NSN 5975-00-228-1582
NSN 5965-00-001-7593
NSN 5920-01-606-8573
NSN 5905-01-026-9106