Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ETI-300-R1 found under Actuator Electro Mechanical Rota by A T Controls Inc. The National Stock Number assigned to this part is 4810015251709, 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 ETI-300-R1.