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 5998-01-236-7961
NSN 5985-01-217-0934
NSN 6145-01-010-1896
NSN 6220-00-041-0083
NSN 6145-01-167-1835
NSN 6645-00-226-2270
NSN 5930-00-377-9991
NSN 5855-01-147-6024
NSN 6105-01-471-6780
NSN 6645-00-211-6906
NSN 5998-01-119-3903
NSN 6135-01-543-2879