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 5895-01-087-9493
NSN 6320-01-496-4605
NSN 5990-00-978-4936
NSN 7035-01-243-2730
NSN 6685-01-255-6981
NSN 6240-00-017-9006
NSN 5855-01-352-7033
NSN 5915-01-025-1362
NSN 6610-01-004-2906
NSN 6620-00-467-7414
NSN 6110-01-461-9315
NSN 2925-00-391-0331