Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NCS1657 found under Microcircuit Hybrid by Microchip Technology Incorporated. The National Stock Number assigned to this part is 5962003211687, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NCS1657.