Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number APT801R4ANTX found under Transistor by Microsemi Corp Power Products. The National Stock Number assigned to this part is 5961015068785, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like APT801R4ANTX.