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 5990-01-174-6851
NSN 5835-00-825-2512
NSN 6130-01-109-3050
NSN 6135-00-422-3967
NSN 6240-01-376-3697
NSN 5905-01-240-7991
NSN 5835-01-449-7511
NSN 5935-01-476-7885
NSN 5895-01-384-3736
NSN 6650-01-399-8552
NSN 5910-00-127-3849
NSN 5950-01-128-1135