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 5965-01-618-2703
NSN 5965-01-230-2351
NSN 5950-00-116-3646
NSN 6220-01-617-8586
NSN 5998-01-586-8404
NSN 5925-01-185-0031
NSN 6685-01-634-0611
NSN 5930-01-060-3800
NSN 5945-01-651-5308
NSN 5920-01-501-1361
NSN 7035-01-377-7712
NSN 5945-01-590-0251