Nipple Application Air Natural Gas Non-Potable Water Propane Steam Inside Diameter 4 1/64 in Material Stainless Steel Material Grade 316 Maximum Operating Pressure 847 psi Maximum Operating Temperature 650 Degrees F Metal Pipe Construction Seamless Minimum Operating Temperature -20 Degrees F Nominal Pipe Size 4 in Outside Diameter 4 1/2 in Overall Length 4 in Schedule Schedule 40 Side A Gender Male Side A Thread Type NPT Side B Connection Type Unthreaded