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 6685-01-203-2160
NSN 5996-01-377-3743
NSN 5965-01-352-4906
NSN 6135-00-191-6444
NSN 5998-01-456-3598
NSN 5945-00-118-6246
NSN 6130-00-799-3806
NSN 6645-00-313-2324
NSN 6110-01-158-7225
NSN 6610-01-003-9763
NSN 6685-01-289-2988
NSN 5920-00-526-0462