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 7035-01-005-5459
NSN 5835-01-571-4083
NSN 6105-01-603-1497
NSN 5999-01-388-3541
NSN 4140-01-484-1940
NSN 6620-01-373-4588
NSN 5935-01-215-1009
NSN 5925-01-528-4666
NSN 5950-01-521-1127
NSN 5905-00-553-9985
NSN 5930-01-054-4710
NSN 2925-00-486-8640