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 6240-01-425-1545
NSN 6220-00-420-8166
NSN 6110-00-233-6626
NSN 7035-01-222-8090
NSN 5910-01-222-0575
NSN 5999-01-334-7512
NSN 6145-01-519-3281
NSN 6130-00-799-3806
NSN 7035-01-245-7973
NSN 6135-01-544-8463
NSN 6610-01-627-0642
NSN 6130-01-218-0559