Standard Black Nipple Application Air Natural Gas Non-Potable Water Oil Steam Fitting Compatibility Schedule 80 Inside Diameter 1 1/2 in Manufacture Location Made in USA Material Steel Material Grade Grade B Metal Pipe Construction Welded Nominal Pipe Size 1 1/2 in Outside Diameter 1 29/32 in Overall Length 2 in Pipe Weld Type Continuous Weld Schedule Schedule 80 Side A Connection Type Threaded Side A Gender Male Side A Thread Type BSPT Side B Connection Type Threaded