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 6110-00-257-1446
NSN 5895-01-146-0570
NSN 7035-01-479-5268
NSN 5895-00-311-8969
NSN 5910-01-346-9559
NSN 5990-01-212-2037
NSN 6610-01-418-5787
NSN 5925-01-526-3328
NSN 5985-01-486-2944
NSN 6645-00-818-9408
NSN 6620-00-774-3638
NSN 5855-01-188-4049