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 5950-01-439-3843
NSN 6145-01-602-5190
NSN 6145-01-461-9925
NSN 5999-00-829-8166
NSN 6620-01-336-5765
NSN 5920-01-172-6358
NSN 5895-00-932-5491
NSN 5985-01-246-2582
NSN 6620-01-329-0845
NSN 5905-00-894-0982
NSN 6135-01-573-2428
NSN 5990-01-044-4767