Nut Application Fluids Gases Finish/Coating Zinc Plated Fitting Material Steel Maximum Operating Temperature 250 Degrees F Overall Length 11/16 in Thread Size 11/16-16 Specific Fitting Shape Nut System of Measurement Imperial Compatible Tube Outer Diameter 3/8 in Series Ferulok Standards SAE J1453 Fitting Connection Type Compression Hex Size 13/16 in Minimum Operating Temperature 30 Degrees F