Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ASTM A312 TP 316L found under Tube Assembly Metal by American Society For Testing And. The National Stock Number assigned to this part is 4710999822626, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ASTM A312 TP 316L.