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 2925-01-604-8984
NSN 6135-00-880-1026
NSN 6130-01-087-2371
NSN 6645-00-050-3738
NSN 5990-00-932-3070
NSN 2925-01-068-3262
NSN 6650-00-599-9509
NSN 5965-01-295-9842
NSN 6240-00-011-5273
NSN 7035-01-222-2534
NSN 5925-00-998-8511
NSN 5975-00-471-3731