Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 820UN01S4BA5AC found under Switch Toggle by Zodiac Aero Electric. The National Stock Number assigned to this part is 5930143826661, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 820UN01S4BA5AC.