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 6150-00-810-9605
NSN 5910-01-633-9963
NSN 5905-01-422-3229
NSN 5999-01-550-0997
NSN 5999-01-467-1996
NSN 5910-01-100-8464
NSN 6650-00-443-4292
NSN 5945-01-427-3790
NSN 6645-01-484-4158
NSN 5835-01-247-0717
NSN 5895-01-140-9663
NSN 4140-01-360-1602