Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40004431-003 found under Encoder Shaft Angle To Digital by Battelle Memorial Institute. The National Stock Number assigned to this part is 5990015878562, 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 40004431-003.