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 6240-00-734-3276
NSN 5905-01-485-0234
NSN 5945-01-483-9724
NSN 6150-01-047-5738
NSN 5945-01-501-5487
NSN 5905-01-142-7170
NSN 6130-00-862-5516
NSN 6620-01-456-0529
NSN 6645-01-021-5727
NSN 5895-01-479-8876
NSN 5835-01-093-8244
NSN 5910-01-442-4553