Features This GRAINGER APPROVED pipe nipple is suitable for use with air, water, oil, natural gas, and steam in high-pressure, high-temperature boiler applications. NPT threads at both ends allow for easy connections Nipple must be used with properly rated fittings Finish/Coating / Galvanized Fitting Compatibility / Class 6000 Gravity Flow / No Inside Diameter / 1 in Material / Steel Maximum Operating Pressure / 900 psi @ 150 Degrees F Maximum Steam Pressure / 5356 psi @ 650 Degrees F Metal Pipe Construction / Seamless Nominal Pipe Size / 1 in Outside Diameter / 1 5/16 in Overall Length / 6 in Schedule / Schedule 160 Side A Connection Type / Threaded Side A Gender / Male Side A Thread Type / NPT Side B Connection Type / Threaded Side B Gender / Male Side B Thread Type / NPT Standards / ANSI B1.20.1 Thread Configuration / Threaded on Both Ends Wall Thickness / 0.328 in