Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8211B78 found under Valve Solenoid by Automatic Switch Company. The National Stock Number assigned to this part is 4810002038113, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 8211B78.