Unusual experimental rocket thruster nozzle, measuring 14.75″ long with a diameter of 1.25″ at the top and 3.5″ across the bell, with a pressure tap at the top of the long tubular body. The piece is made of a niobium alloy, prized in aerospace research and rocket engine design for its high melting point of 2468°C. No sale/export of this item to non-US citizens or entities.
