This nipple meets the standards for ASTM B687, ANSI B1.20.1, NSF 61, AB1953, has a length of 1½ inch, a maximum operating pressure of 201 psi @ 450 Degrees F and is designed for the following applications: air, natural gas, oil, potable water, steam. It has an operating temperature of -20 Degrees F to 400 Degrees F, is resistant to corrosion and is made of ASTM B43-grade red brass. In addition, it has 9/16 inch outside diameter, ¼ inch inside diameter and is Schedule 40, with 0.082 inch wall t