About This Unit

We’ve serviced hundreds of MOOG 63-303B units over the years. Each one goes through the same controlled teardown, parts replacement, and testing process.

Experience and Warranty

As a specialized repair facility, we have dedicated test equipment that general-purpose shops don’t. That means your MOOG 63-303B gets serviced by people who work on these units regularly.

50+ years of expertise in MOOG 63-303B Valve Repair

Frequently Asked Questions

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

Helpful but not required. If you can photograph the label, connectors, and overall unit, it gives our team a head start.

We can often prioritize urgent jobs. Note it on your request form and we’ll let you know what’s possible.

You’ll hear from us either way. If it’s not repairable, we’ll return the unit and provide our findings.

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.

Rebuild Steps

Each valve goes through teardown to expose wear and buildup. After mineral bath cleaning, we replace damaged parts and reassemble the unit to spec.

  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Final Performance Verification: After reassembly, each valve is bench-tested against published performance specifications.

Leak and Performance Testing

NC Servo Technology operates our 13-stand test facility, including setups for proportional and servo valves. Every valve goes through performance and leak testing using industry-standard fluids including MIL-5606 and Skydrol. Our pre-shipment testing verifies proper functionality.

Repair, Rebuild and Exchange Options

Beyond standard refurbishment, we offer specialized overhauls for your MOOG 63-303B unit. Our overhaul process includes internal inspection and reassembly to spec, using only replacement replacement components.

Lead Times and Support

As a specialist for MOOG 63-303B services, NC Servo Technology targets quick resolution with typical lead times of 2 to 3 weeks. Benefit from our responsive technical support to keep your systems running smoothly.

In-House Inventory for MOOG 63-303B

With an extensive stock of 17,000+ valves, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.

Maintenance Tips

  • Inspect MOOG 63-303B seals regularly to prevent leaks and maintain performance.
  • Keep a spare MOOG 63-303B on hand to minimize downtime during unplanned failures.
  • Schedule preventive maintenance intervals based on duty cycle, not just calendar time.

Start Your MOOG 63-303B Reconditioning Process

Request pricing, availability, and turnaround for your MOOG 63-303B. NC Servo Technology provides warrantied repair with a 1-year warranty. Contact us to set up your repair.

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NC Servo Technology 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.