Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AE83970E found under Valve Check by Eaton Corporation. The National Stock Number assigned to this part is 4820015370333, 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 AE83970E.