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 2925-01-368-1333
NSN 5990-00-959-8280
NSN 5950-01-088-4076
NSN 6145-01-100-8565
NSN 5920-01-469-6025
NSN 6650-01-603-3183
NSN 6145-01-241-9221
NSN 2925-00-301-0933
NSN 6620-00-307-3024
NSN 5895-00-724-2312
NSN 5835-00-617-3578
NSN 6620-00-963-1319