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 7035-01-385-7306
NSN 6650-01-562-4133
NSN 5975-01-350-2618
NSN 6645-00-890-3226
NSN 4140-01-501-6632
NSN 6650-01-399-8552
NSN 5998-01-647-2641
NSN 6650-01-014-5990
NSN 6110-00-157-1699
NSN 6220-01-005-4322
NSN 4140-01-137-8505
NSN 6220-00-200-7888