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 6685-01-535-8386
NSN 6610-00-071-0057
NSN 7035-00-140-0474
NSN 6135-00-542-6216
NSN 6105-00-175-9078
NSN 6645-01-621-5424
NSN 7035-01-155-0153
NSN 2925-01-004-5627
NSN 6320-01-029-4220
NSN 5950-01-514-0771
NSN 2925-01-255-6394
NSN 6320-01-088-1109