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 6685-01-494-9626
NSN 5855-00-198-3197
NSN 6650-01-022-9523
NSN 6135-01-134-7222
NSN 5965-00-104-3121
NSN 4140-00-707-5963
NSN 6135-01-528-6896
NSN 6130-01-457-5131
NSN 6130-00-369-1627
NSN 6685-01-507-5047
NSN 5925-00-188-8678
NSN 7035-00-834-2090