Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3451456 found under Valve Ball by Sensor And Antenna Systems. The National Stock Number assigned to this part is 4820002619585, 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 3451456.