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 2925-01-551-5375
NSN 5950-00-182-8204
NSN 2925-00-408-9829
NSN 5960-01-286-3766
NSN 5910-00-430-8355
NSN 5998-00-576-4861
NSN 6620-01-290-2973
NSN 5998-00-018-5145
NSN 5999-01-251-0935
NSN 6135-01-142-6456
NSN 5915-01-390-0659
NSN 5985-01-564-8622