Thank you for choosing Aerospace-Aviation360 for Part Number 5965774 described as Indicator, Synchro Position. Elevator, Rudder & Horizontal Stabilizer Synchro Position Indicator. For The Technician While Aligning The Synchro Position Transmitters. by Mcdonnell Douglas. This is an ASAP Semiconductor owned and operated website. We are a leading supplier of aircraft tooling parts. You have 24/7 x 365 access to our diverse product database with the fastest lead times in the industry.