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 6650-00-751-9958
NSN 6110-00-482-3372
NSN 2925-00-347-7893
NSN 5945-00-324-0899
NSN 5945-00-661-0506
NSN 7035-01-539-1600
NSN 6145-01-634-0388
NSN 5855-01-316-6574
NSN 6145-01-616-6190
NSN 5905-01-573-3691
NSN 5985-00-274-1297
NSN 5998-00-860-6308