Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CU1773SRA56 found under Network Impedance M by Joint Electronics Type Designation. The National Stock Number assigned to this part is 5915002449654, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CU1773SRA56.