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 6645-00-754-4108
NSN 5990-00-730-4366
NSN 5998-01-305-1955
NSN 2925-00-794-8761
NSN 6240-01-448-6870
NSN 6220-01-240-1108
NSN 5935-01-221-1696
NSN 6240-01-145-4916
NSN 5999-00-122-6085
NSN 4140-01-319-0459
NSN 5985-01-356-7245
NSN 7035-00-703-3535