Nipple, Application Air, Natural Gas, Non-Potable Water, Propane, Steam, Fitting Compatibility Schedule 40, Inside Diameter 1 5/8 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 1 1/2 in, Outside Diameter 1 21/32 in, Overall Length 3 in, Pipe Weld Type Electric Resistance Weld