Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17327P11 found under Seat Valve by Taylor Machine Works Inc. The National Stock Number assigned to this part is 4820000162333, 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 17327P11.