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 6145-00-419-3836
NSN 5905-00-929-2693
NSN 5998-01-535-6790
NSN 5925-00-334-0044
NSN 2925-01-394-9658
NSN 6150-01-442-6842
NSN 5945-01-122-4747
NSN 5835-00-130-6404
NSN 5996-00-118-4137
NSN 5855-00-185-1560
NSN 6110-00-643-4832
NSN 5915-01-441-2982