Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 820-000045-003 found under Unmanned Aircraft by Vantage Robotics Inc. The National Stock Number assigned to this part is 1550017147256, and the Federal Supply Class is 1550 Unmanned Aircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 820-000045-003.