Nut, Application Potable Water, Fitting Thread Size 7/8-14, Flare Angle 45 Degrees , Fitting Material Brass, Hex Size 1 1/16 in, Maximum Operating Pressure 650 psi, Maximum Operating Temperature 250 Degrees F, Overall Length 1 in, Specific Fitting Shape Nut, Compatible Auto Systems Domestic, Compatible Tube Outer Diameter 1/2 in, Standards NSF/ANSI 61 Annex G, Fitting Connection Type Flared, Minimum Operating Temperature 65 Degrees F WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. -