Bulkhead Locknut Application Air Natural Gas Non-Potable Water Potable Water Steam Fitting Material Stainless Steel Material Grade 316 Maximum Operating Pressure 6 600 psi Maximum Operating Temperature 1 200 Degrees F Overall Length 1/4 in Thread Size 9/16-20 Specific Fitting Shape Bulkhead Locknut System of Measurement Imperial Compatible Fitting Brands Swagelok Standards ASTM 31.3 Fitting Connection Type Compression Hex Size 3/4 in Minimum Operating Temperature 425 Degrees F