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 6110-01-384-0570
NSN 5950-01-217-4092
NSN 5975-01-326-3006
NSN 5965-01-028-6206
NSN 5965-00-023-0944
NSN 5998-00-177-1242
NSN 5930-00-911-9544
NSN 5855-00-688-9954
NSN 6685-00-858-0763
NSN 5999-01-466-4916
NSN 6220-01-257-7475
NSN 5950-01-249-3415