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 6145-01-013-3097
NSN 6320-01-600-0787
NSN 6240-01-444-1673
NSN 5945-01-323-6496
NSN 6105-01-032-5168
NSN 2925-01-540-7389
NSN 4140-01-387-0331
NSN 6130-01-123-9041
NSN 6620-00-842-9224
NSN 6145-00-935-8783
NSN 5895-01-415-1377
NSN 6645-01-172-6838