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 6240-01-450-9269
NSN 6135-00-816-9052
NSN 6130-00-458-2257
NSN 5960-01-023-8037
NSN 6240-00-452-5241
NSN 6645-00-754-4108
NSN 6320-01-296-3181
NSN 5975-00-686-3504
NSN 5999-01-302-9221
NSN 5999-01-025-6686
NSN 5985-00-906-6490
NSN 6145-01-248-3841