Nipple, Application Air, Gas, Non-Potable Water, Oil, Steam, Finish/Coating Galvanized, Fitting Compatibility Schedule 40, Inside Diameter 4 1/32 in, Manufacture Location Made in USA*, Material Steel, Material Grade Grade A, Maximum Operating Pressure 150 psi @ 150 Degrees F, Metal Pipe Construction Welded, Nominal Pipe Size 4 in, Outside Diameter 4 1/2 in, Overall Length 8 in, Pipe Weld Type Continuous Weld, Schedule Schedule 40, Side A Connection Type Threaded, Side A Gender Male