Nipple Application Air Natural Gas Non-Potable Water Propane Steam Fitting Compatibility Schedule 80 Gravity Flow No Inside Diameter 3 29/32 in Material Stainless Steel Material Grade 316 Maximum Operating Pressure 150 psi Maximum Operating Temperature 450 Degrees F Metal Pipe Construction Seamless Minimum Operating Temperature -60 Degrees F Nominal Pipe Size 4 in Outside Diameter 4 1/2 in Overall Length 8 in Schedule Schedule 80 Side A Connection Type Threaded