Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 75Z578D2 found under Rectifier Semiconductor Device by Abb Inc. The National Stock Number assigned to this part is 5961013736046, 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 75Z578D2.