Nipple, Application Air, Gas, Non-Potable Water, Oil, Steam, Finish/Coating Black Anodized, Fitting Compatibility Schedule 40, Inside Diameter 3 1/16 in, Manufacture Location Made in USA*, Material Steel, Material Grade Grade A, Maximum Operating Pressure 300 psi @ 150 Degrees F, Maximum Steam Pressure 150 psi @ 360 Degrees F, Metal Pipe Construction Welded, Nominal Pipe Size 3 in, Outside Diameter 3 1/2 in, Overall Length 6 in, Pipe Weld Type Continuous Weld, Schedule Schedule 40