Compression Nut Application Gases Hydraulic Process Tubing Systems Fitting Material Stainless Steel Material Grade 316 Maximum Operating Temperature 1 200 Degrees F Overall Length 1/2 in Thread Size 7/16-20 Specific Fitting Shape Nut System of Measurement Imperial Compatible Tube Outer Diameter 1/4 in Compatible Fitting Brands Parker A-LOK Swagelok Series Brennan Instrumentation Standards ASME B31.3-2002 ASTM A269-04 ASTM F1387 Fitting Connection Type Compression