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 5996-00-926-2528
NSN 5975-01-384-4895
NSN 5935-00-237-0044
NSN 5920-01-462-3181
NSN 5990-00-053-1892
NSN 6145-00-323-0185
NSN 5999-01-309-7604
NSN 5905-00-975-9922
NSN 2925-01-633-4048
NSN 6685-01-572-2245
NSN 6610-01-472-2757
NSN 6135-01-031-3032