Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 066-04017-0003 found under by Telephonics Corporation. The National Stock Number assigned to this part is 5826014960907, and the Federal Supply Class is 5826 Radio Navigation Equipment Airborne. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 066-04017-0003.