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 5925-01-250-1035
NSN 5945-01-475-4191
NSN 5950-01-023-8842
NSN 5835-00-311-5491
NSN 6610-00-276-8919
NSN 5975-00-471-3731
NSN 5960-01-269-6045
NSN 5985-00-084-1547
NSN 5905-01-429-0102
NSN 5935-00-146-8506
NSN 5835-01-091-2553
NSN 6610-01-518-1264