Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 171 02 15 found under Valve Block Assembl by Delphi Automotive Systems Llc. The National Stock Number assigned to this part is 4820998760429, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 171 02 15.