How We Repair Your Unit

Each MOOG D920-133 undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

Overview

We handle a wide range of MOOG D920-133 units. Each one receives inspection, internal cleaning, and reconditioning before it ships.

Frequently Asked Questions

We regularly work on units with missing labels. Send us a few images and any visible part numbers, and we can usually match it.

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

Yes. If the unit can’t be repaired, we contact you with options before doing anything further.

No cleaning required. Our repair process includes disassembly and cleaning of all components.

Inspection and root-cause analysis are part of our standard process. We identify the issue before starting any repair work.

Why Repair With NC Servo

As a specialized repair facility, we have dedicated test equipment that general-purpose shops don’t. That means your MOOG D920-133 gets serviced by people who work on these units regularly.

Specializing in MOOG D920-133 servo valve technology for over five decades

How We Rebuild This Valve

Once a valve arrives, we tear it down fully, examine key surfaces, and replace worn or damaged parts using components we stock in-house, cutting out OEM lead times.

  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.
  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.

Hydraulic Testing Process

With over a dozen dedicated flow test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. Performance reports and graphs are available for purchase on request. Our performance testing verifies consistent performance.

Lead Times and Support

As a specialist for MOOG D920-133 services, NC Servo Technology targets quick resolution with typical lead times of 2 to 3 weeks. Benefit from our direct access to our technicians to keep your systems running smoothly.

Maintenance Tips

  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.
  • Monitor operating temperatures to identify potential issues before failure occurs.

Need Your MOOG D920-133 Back Online?

Request pricing, availability, and turnaround for your MOOG D920-133. NC Servo Technology provides independent 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.