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 6135-00-050-7189
NSN 2925-01-497-1364
NSN 6620-01-078-6372
NSN 7035-01-597-4180
NSN 5855-01-534-7940
NSN 5855-00-908-9314
NSN 5950-00-871-1036
NSN 5996-01-266-7008
NSN 5925-01-506-2508
NSN 5895-01-654-7154
NSN 5975-01-487-8724
NSN 5835-01-303-6563