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 6105-01-055-7436
NSN 5985-01-222-1690
NSN 5985-01-485-3062
NSN 7035-01-211-5636
NSN 5945-00-823-8652
NSN 5935-01-540-1550
NSN 7035-01-650-8376
NSN 6220-01-373-7169
NSN 6110-00-195-7769
NSN 5835-01-397-6412
NSN 6110-00-583-9821
NSN 6620-00-511-3355