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 5930-01-530-1442
NSN 5835-01-495-0595
NSN 6130-01-557-6683
NSN 5985-01-031-3315
NSN 6645-00-150-6526
NSN 6240-00-872-3365
NSN 5990-00-568-4940
NSN 6150-00-415-1109
NSN 4140-00-412-2408
NSN 5835-00-911-6330
NSN 6320-01-578-6006
NSN 5895-00-204-4358