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 5985-01-287-9365
NSN 5985-00-554-4599
NSN 5920-01-114-3507
NSN 6130-01-090-6999
NSN 6130-01-503-4832
NSN 5996-01-028-3580
NSN 5930-01-366-4239
NSN 5835-01-303-6563
NSN 6105-01-578-1292
NSN 5915-00-132-3493
NSN 6645-01-242-9699
NSN 5910-01-592-9406