Nipple Application Air Natural Gas Non-Potable Water Propane Steam Fitting Compatibility Schedule 40 Inside Diameter 1/2 in Material Stainless Steel Material Grade 316 Maximum Operating Pressure 150 psi @ 72 Degrees F Maximum Steam Pressure 150 psi @ 360 Degrees F Metal Pipe Construction Welded Nominal Pipe Size 3/8 in Outside Diameter 43/64 in Overall Length 1 1/2 in Pipe Weld Type Electric Resistance Weld