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 6240-01-415-5149
NSN 6135-01-342-3859
NSN 4140-01-647-6963
NSN 5960-00-131-1218
NSN 5965-01-109-2917
NSN 5935-01-472-2095
NSN 2925-01-443-1748
NSN 6240-01-313-2229
NSN 4140-01-036-4647
NSN 7035-00-173-2281
NSN 6650-00-992-1873
NSN 5895-01-082-6098