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 6320-01-498-4954
NSN 5935-01-660-3512
NSN 5855-01-649-3606
NSN 5835-01-548-1143
NSN 5965-01-025-5129
NSN 5930-01-562-2047
NSN 6220-01-023-0117
NSN 6105-01-159-8313
NSN 5935-00-343-7614
NSN 5855-01-057-7818
NSN 5985-01-099-3174
NSN 5855-01-147-4785