Overview

We’ve serviced hundreds of MOOG 773-504 units over the years. Each one goes through the same controlled teardown, parts replacement, and testing process.

Teardown and Rebuild Steps

Our process involves a teardown of your MOOG 773-504, mineral bath and ultrasonic cleaning, and reassembly with quality parts to restore operation.

Frequently Asked Questions

Photos help us confirm the unit type and speed up intake. You can upload them through our quote request form.

In most cases, repair costs less than replacement, especially for legacy or OEM-specific models. We evaluate every unit and let you know what makes sense.

Yes. Send us photos of the unit from multiple angles. Our team has serviced thousands of models and can often ID them visually.

Most repairs are completed within 1 to 3 weeks, depending on workload and parts availability.

We confirm next steps with you if a unit can’t be rebuilt. No work proceeds without your approval.

Why Repair With NC Servo

We’ve built our shop around one thing: industrial repair. With decades of hands-on experience and deep product knowledge, we deliver consistent results.

Specializing in MOOG 773-504 servo valve technology for over five decades

Rebuild Steps

We rebuild every valve from the inside out: cleaning, inspection, parts replacement, reassembly, and bench testing.

  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.

Hydraulic Testing Process

Each MOOG 773-504 is tested on a dedicated flow bench before it ships. We check pressure, flow, leakage, and response characteristics against published specifications. Our performance testing verifies spec-level operation.

MOOG 773-504 Specifications

Every MOOG 773-504 we service is tested under real-world conditions. Our diagnostics verify performance against published specifications. Specification sheets and Performance data are available for purchase upon request.

Additional MOOG 773-504 Services

Beyond standard refurbishment, we offer specialized reconditioning for your MOOG 773-504 unit. Our teardown process includes flow verification and bench testing, using only replacement replacement components.

Turnaround and Shipping

As a dedicated source for MOOG 773-504 services, NC Servo targets quick resolution with typical lead times of 2 to 3 weeks. Benefit from our dedicated support team to keep your systems running smoothly.

Product Data Available

For documented insights into your MOOG 773-504, we can provide access to service logs and repair records. This transparency offers you peace of mind and aids in long-term maintenance planning.

Maintenance Tips

  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Flush the hydraulic system after any major repair to remove debris before reinstalling the MOOG 773-504.
  • Perform fluid analysis to detect contamination early and prevent system damage.

Request a Quote for Your MOOG 773-504 Maintenance

Request pricing, availability, and turnaround for your MOOG 773-504. NC Servo provides warrantied repair with a 1-year warranty. Contact us to schedule your repair.

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NC Servo is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by MOOG or any original equipment manufacturer (OEM), nor do we claim to be a MOOG service center. All brand names, trademarks, model numbers, and part numbers referenced on this page are the property of their respective owners and are used solely for identification and compatibility purposes.