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 6145-01-578-4898
NSN 6610-01-287-9814
NSN 6685-01-042-4245
NSN 6650-00-398-1821
NSN 6220-01-482-8836
NSN 5950-01-649-6842
NSN 5985-01-533-8690
NSN 6110-01-544-6383
NSN 6220-01-219-9670
NSN 6620-00-475-3224
NSN 5925-01-156-8585
NSN 5985-01-391-7665