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 5930-01-428-7766
NSN 5960-01-457-0157
NSN 6145-01-095-8456
NSN 6610-01-484-8980
NSN 5965-01-186-2051
NSN 6220-01-215-6273
NSN 4140-00-952-2287
NSN 6110-01-332-7826
NSN 5935-01-165-0677
NSN 5920-00-850-4812
NSN 5915-01-451-4332
NSN 5935-00-141-9437