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 7035-00-763-6180
NSN 4140-01-474-4275
NSN 5925-01-401-5314
NSN 5855-00-106-1640
NSN 5960-01-066-9024
NSN 6650-01-474-8459
NSN 6145-00-843-3961
NSN 2925-00-986-8393
NSN 5985-01-597-1683
NSN 5975-01-607-0449
NSN 6150-00-194-7887
NSN 6150-01-565-5312