Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HY 1633-001 found under Microcircuit Linear by Hytek Microsystems Inc. The National Stock Number assigned to this part is 5962004147677, 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 HY 1633-001.