Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4PHS217-12 found under Elbow Tube by Tyco Electronics Corporation. The National Stock Number assigned to this part is 4730013679932, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4PHS217-12.