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 5998-01-178-6346
NSN 6110-01-203-7760
NSN 6135-00-932-3136
NSN 5985-01-205-7526
NSN 5999-01-107-7419
NSN 5915-01-326-4293
NSN 6645-01-362-2587
NSN 6145-00-738-5601
NSN 5835-01-186-4961
NSN 5915-01-270-8103
NSN 5990-00-576-4882
NSN 2925-01-203-0493