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 5960-00-348-3015
NSN 6685-00-959-4089
NSN 2925-00-386-8745
NSN 5950-01-603-1584
NSN 6135-01-156-4627
NSN 5910-00-248-6899
NSN 6220-01-530-3265
NSN 6650-00-484-3616
NSN 6620-01-521-0580
NSN 5905-00-023-5592
NSN 6610-01-645-7515
NSN 7035-01-494-1161