Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HSR353-1 found under Heater Sensor Gyro by Minco Products Inc. The National Stock Number assigned to this part is 6615004004276, 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 HSR353-1.