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 5990-01-553-6859
NSN 6240-00-912-5186
NSN 6145-00-730-3933
NSN 6320-00-937-5625
NSN 5960-01-167-8796
NSN 5905-00-439-1085
NSN 2925-01-014-0118
NSN 6610-00-420-3089
NSN 5998-01-603-0752
NSN 6135-01-108-6057
NSN 5920-01-421-5362
NSN 5990-00-067-6791