Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ETH11E4 found under Synchro Control Tra by Avex Electronics Corp. The National Stock Number assigned to this part is 5990009304665, and the Federal Supply Class is 5990 Synchros And Resolvers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ETH11E4.