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.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 6150-01-071-6210
NSN 5935-01-086-1598
NSN 6240-01-597-4870
NSN 7035-01-518-9610
NSN 6620-00-679-5830
NSN 5999-01-157-9643
NSN 7035-00-931-9415
NSN 5950-01-249-3415
NSN 5855-01-341-2518
NSN 5945-01-018-5963
NSN 6620-01-642-4218
NSN 6110-01-554-8653