Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QSA12 found under Rectifier Special by Claude Lyons Limited. The National Stock Number assigned to this part is 5961010915804, 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 QSA12.