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 5935-01-083-0187
NSN 6145-01-642-1446
NSN 6110-01-397-4785
NSN 5835-00-546-4898
NSN 6620-00-341-1876
NSN 6130-00-144-0976
NSN 5835-00-707-6266
NSN 6610-00-798-7588
NSN 5945-01-390-9576
NSN 6650-00-758-0378
NSN 5905-01-119-0427
NSN 6110-00-769-6537