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 6610-01-627-8985
NSN 5945-01-324-0749
NSN 4140-01-634-0330
NSN 6685-00-099-9025
NSN 6130-01-071-5341
NSN 5935-01-507-6525
NSN 5835-01-110-0697
NSN 5930-01-384-3848
NSN 5985-00-185-5430
NSN 6620-00-531-2974
NSN 5999-01-521-3148
NSN 5925-01-282-8991