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 6650-00-195-7519
NSN 6110-01-022-0740
NSN 5965-00-801-1131
NSN 6320-00-845-3261
NSN 5950-01-358-4316
NSN 5910-00-168-3466
NSN 5998-01-381-1499
NSN 4140-01-594-6862
NSN 6610-00-077-3172
NSN 6220-01-430-0171
NSN 4140-00-504-1829
NSN 6105-01-004-1808