Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 58-163 found under Rectifier Semicondu by Rapid Power Technologies Inc. The National Stock Number assigned to this part is 5961013625166, 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 58-163.