Bulkhead Application Air Fitting Side A Connection Type Compression Fitting Side B Connection Type NPTF Fitting Material Brass Fitting Side A Tube Outer Diameter 3/8 in Maximum Operating Pressure 2 000 psi Maximum Operating Temperature 200 Degrees F Overall Length 1 3/4 in Specific Fitting Shape Straight Bulkhead Adapter Fitting Side B Pipe Size 3/8 in Thread Size A 7/8-20 Thread Size B 3/8-18 System of Measurement Imperial Standards DOT/SAE J1402A Compatible Tube Material Rubber