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 5950-00-929-5792
NSN 5960-01-157-7009
NSN 5975-00-704-0334
NSN 7035-01-477-2818
NSN 4140-01-418-7534
NSN 5915-01-284-8905
NSN 5905-01-535-2031
NSN 7035-00-064-7008
NSN 5945-00-081-9140
NSN 5999-01-471-2133
NSN 5855-00-053-3142
NSN 5925-01-548-3130