Female Adapter Application Gases Fitting Side A Connection Type Compression Fitting Side B Connection Type FNPT Fitting Material Steel Fitting Side A Tube Outer Diameter 1 in Maximum Operating Pressure 125 psi Maximum Operating Temperature 120 Degrees F Overall Length 3 7/16 in Specific Fitting Shape Straight Adapter Fitting Side B Pipe Size 1 in Thread Size A 1-11 1/2 Thread Size B 1-11 1/2 System of Measurement Imperial Standards 49 CFR Part 192 ASTM D2513