Nipple Application Air Natural Gas Oil Potable Water Steam Fitting Compatibility Class 150 Gravity Flow No Inside Diameter 1/8 in Material Red Brass Material Grade ASTM B43 Maximum Operating Pressure 373 psi @ 450 Degrees F Maximum Operating Temperature 400 Degrees F Maximum Steam Pressure 373 psi @ 450 Degrees F Metal Pipe Construction Seamless Minimum Operating Temperature -20 Degrees F Nominal Pipe Size 1/8 in Outside Diameter 13/32 in Overall Length 3/4 in