Cap Application Gases Oils Fitting Connection Type O-Ring Face Seal Fitting Material Stainless Steel Fitting Tube Size Outer Diameter 1/4 in Material Grade 316 Maximum Operating Pressure 9 200 psi Maximum Operating Temperature 250 Degrees F Specific Fitting Shape Cap System of Measurement Imperial Compatible Fitting Brands Seal-Lok Fitting Thread Size 9/16-18 Series Seal-Lok Standards SAE J1453 Minimum Operating Temperature 30 Degrees F