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 5945-00-964-8677
NSN 7035-01-396-1089
NSN 5835-00-247-0161
NSN 5915-01-458-1753
NSN 6135-01-554-4281
NSN 5985-01-081-8456
NSN 6240-01-541-5395
NSN 6620-01-174-9575
NSN 5975-01-344-3011
NSN 6150-01-265-4093
NSN 5855-00-149-0766
NSN 6685-01-379-2168