Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R63870C14E3971 found under Valve Solenoid by Unifab Industries Inc. The National Stock Number assigned to this part is 4810007624463, 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 R63870C14E3971.