American National Standard Taper Pipe Thread (NPT) on both ends Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability Operating temperatures range from -53 to 121 degrees C (-65 to 250 degrees F) Male Thread Dimension:0.313" ;Female Thread Dimension:0.34" Package includes: 1 Piece American National Standard Taper Pipe Thread (NPT) on both ends Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability Operating temperatures range from -53 to 121 degrees C (-65 to 250 degrees F) Male Thread Dimension:0.313" ;Female Thread Dimension:0.34" Package includes: 1 Piece