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 6135-00-437-5182
NSN 6150-01-567-8846
NSN 5950-00-764-3138
NSN 6130-01-025-6770
NSN 5965-00-422-5415
NSN 6130-00-187-0211
NSN 7035-01-429-7954
NSN 6110-01-513-5417
NSN 6150-01-388-4992
NSN 7035-00-541-8516
NSN 4140-01-412-5495
NSN 5945-01-160-0945