Nipple Application Air Fitting Compatibility Schedule 40 Inside Diameter 2 31/64 in Material Aluminum Material Grade 6063-T6 Maximum Operating Pressure 125 psi @ 72 Degrees F Metal Pipe Construction Seamless Nominal Pipe Size 2 1/2 in Outside Diameter 2 7/8 in Overall Length 12 in Resistance Properties Corrosion-Resistant Schedule Schedule 40 Side A Connection Type Unthreaded Side B Connection Type Unthreaded Standards ANSI/ASME B1.20.1 ASTM B241 Thread Configuration Unthreaded