Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 240-143A.O found under Amplifier Electronic Control by Power Control Devices Inc. The National Stock Number assigned to this part is 6110010277908, and the Federal Supply Class is 6110 Electrical Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 240-143A.O.