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 5920-00-736-7882
NSN 6620-01-199-8580
NSN 6110-01-337-0223
NSN 6105-01-148-1679
NSN 5996-01-130-5128
NSN 6110-01-589-5005
NSN 5999-01-365-5686
NSN 5910-01-414-9845
NSN 6105-01-047-0828
NSN 6105-01-510-8848
NSN 5935-00-903-3419
NSN 5930-00-222-8476