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 5915-00-905-6281
NSN 6110-00-696-3145
NSN 6220-00-854-2532
NSN 6240-01-465-9713
NSN 5996-01-260-0777
NSN 6130-01-262-0693
NSN 5945-01-463-2802
NSN 6110-01-254-6967
NSN 6240-01-215-3210
NSN 6150-01-278-8852
NSN 6105-00-404-0017
NSN 6145-01-213-6635