Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PC71597 1 found under Transistor by Hybrid Circuits Inc. The National Stock Number assigned to this part is 5961011075756, 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 PC71597 1.