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 7035-01-406-5232
NSN 5835-01-026-0670
NSN 5975-00-278-7437
NSN 6110-01-551-3436
NSN 5910-00-003-5719
NSN 6145-01-214-8037
NSN 6135-00-444-1402
NSN 5985-00-854-0849
NSN 6150-01-541-5093
NSN 6320-01-300-7994
NSN 6650-00-098-6128
NSN 5960-01-372-3290