This nipple meets the standards for ASTM A733, has a length of three inches, a maximum operating pressure of 1563 psi @ 650 Degrees F and is designed for the following applications: air, natural gas, non-potable water, propane, steam. It has an operating temperature of -20 Degrees F to 650 Degrees F, and is made of 316-grade stainless steel. In addition, it has 1 1/16 inch outside diameter, 13/16 inch inside diameter and is Schedule 40, with 0.113 inch wall thickness.