A tube coupling nut with the shank end accommodating a smaller tube size than is accommodated by the tube fitting which connects to the threaded end.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5925-01-068-7906
NSN 5920-01-281-7354
NSN 6150-01-044-6243
NSN 5965-00-537-4844
NSN 6685-01-180-7697
NSN 7035-01-433-4401
NSN 6650-01-386-5787
NSN 6150-01-028-9733
NSN 5960-00-289-6591
NSN 6685-01-340-9314
NSN 6685-01-202-8900
NSN 6685-01-387-6505