Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12253 found under Piston Gyro by Fl Aerospace Corp Janitrol Aero. The National Stock Number assigned to this part is 6615006514634, 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 12253.