No other part numbers with same form, fit, and function found.
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 5990-00-848-8870
NSN 5905-01-375-9749
NSN 5985-00-372-5946
NSN 6135-01-359-4293
NSN 5960-00-258-9292
NSN 6145-01-420-6132
NSN 5998-01-403-2586
NSN 6650-01-509-5936
NSN 6130-01-452-1437
NSN 6650-00-439-8360
NSN 5960-00-188-8648
NSN 5930-01-418-9569