An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also locknut, pipe; nut (1), tube coupling and nut (1), plain, hexagon.
NSN 6135-01-195-5343
NSN 5999-01-323-1118
NSN 5935-01-083-8375
NSN 5950-00-597-8644
NSN 5855-01-363-8646
NSN 5920-01-200-6655
NSN 5895-01-590-7630
NSN 5925-00-284-3726
NSN 5930-00-825-4657
NSN 5960-01-495-0859
NSN 5945-00-115-8569
NSN 5950-00-983-9118