Through Type Insert Application Air Brakes Pressured Air Compatible Fitting Connection Type Compression Compatible Tube Outer Diameter 1/4 in Compatible Tube Inner Diameter 1/4 in Fitting Material Brass Material Grade 304 Maximum Operating Pressure 150 psi Maximum Operating Temperature 200 Degrees F Overall Length 17/32 in Specific Fitting Shape Tube Insert System of Measurement Imperial Compatible Tube Material Nylon Stainless Steel Minimum Operating Temperature 40 Degrees F