Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 16E2544-821 found under Matrix Assembly by Interconnect Wiring Harnesses Inc. The National Stock Number assigned to this part is 6615011524369, and the Federal Supply Class is 6615 Automatic Pilot Mechanisms And Airborne Gyro Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 16E2544-821.