Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A404776-3N CPL-163 found under Valve by B E C Systems Inc. The National Stock Number assigned to this part is 1720007152771, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A404776-3N CPL-163.