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 5910-00-170-2795
NSN 5935-00-203-1991
NSN 6685-01-577-6405
NSN 6110-01-279-0646
NSN 6105-00-979-9976
NSN 6240-00-004-2516
NSN 6145-00-257-6820
NSN 2925-01-212-1040
NSN 6650-00-035-9297
NSN 6645-01-498-5102
NSN 5835-01-105-6170
NSN 6135-01-422-1440