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 5945-01-012-0840
NSN 5960-00-532-1942
NSN 5950-01-263-3897
NSN 5905-01-646-1255
NSN 5930-00-685-0588
NSN 5945-00-860-7091
NSN 6610-01-485-3074
NSN 5910-01-354-7241
NSN 5998-00-170-6756
NSN 5925-01-078-2374
NSN 5945-01-087-2133
NSN 2925-01-583-5619