Thermocouple Connector Application Gases Liquids Fitting Side A Connection Type Compression Fitting Side B Connection Type MNPT Fitting Material Stainless Steel Fitting Side A Tube Outer Diameter 5/8 in Material Grade 316 Maximum Operating Pressure 6 100 psi Maximum Operating Temperature 1 200 Degrees F Overall Length 2 in Specific Fitting Shape Straight Thermocouple Adapter Fitting Side B Pipe Size 3/4 in Compatible Fitting Brands A-LOK Thread Size A 7/8-20