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 6105-01-389-2003
NSN 6620-01-599-2011
NSN 6650-00-077-0638
NSN 6620-01-322-8382
NSN 5895-00-315-3540
NSN 5950-00-159-1571
NSN 5855-01-634-0259
NSN 6645-01-281-7254
NSN 6650-01-578-0007
NSN 6685-00-583-2473
NSN 5999-01-565-1429
NSN 5998-00-260-1899