Key Details

At NC Servo Tech, our shop is equipped to service the MOOG D664-353K. We use a consistent process to restore each unit to working condition.

About Our Shop

NC Servo Tech operates independently, so we’re not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.

Factory-level test stands dedicated to MOOG D664-353K performance verification

Frequently Asked Questions

We recommend sending pictures, especially if the model number is unclear or there is visible damage.

Rush and priority service options exist. Availability depends on current workload, so contact us early.

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

If the main housing or board is intact, repair is usually the better option. We can restore most units to working condition with tested parts.

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

How We Rebuild This Valve

The process begins with disassembly and visual evaluation. We then clean, replace worn pieces, and reassemble the valve to restore its function.

  • 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.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Teardown: Every valve is disassembled for internal inspection.

Hydraulic Testing Process

NC Servo Tech operates our 13-stand test facility, including setups for proportional and servo valves. Every valve goes through performance and leak testing using a range of hydraulic fluids like Skydrol and MIL-5606. Our operational testing verifies proper functionality.

Technical Specifications

Every MOOG D664-353K we service is tested under typical applications. Our diagnostics verify performance against published specifications. Specification sheets and Performance data are available for purchase upon request.

Repair, Rebuild and Exchange Options

Beyond standard sales, we offer specialized overhauls for your MOOG D664-353K unit. Our disassembly process includes leak testing and internal inspection, using only replacement replacement components.

Turnaround and Shipping

As a focused repair facility for MOOG D664-353K services, NC Servo Tech targets quick resolution with typical lead times of 1 to 3 weeks. Benefit from our direct access to our technicians to keep your systems running smoothly.

Technical Information

For transparent insights into your MOOG D664-353K, we can provide access to repair records and service logs. This transparency offers you record-keeping 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 D664-353K.
  • Store spare MOOG D664-353K valves in a clean, dry environment to prevent corrosion and contamination.

Get an Expert Repair for Your MOOG D664-353K

Request pricing, availability, and turnaround for your MOOG D664-353K. NC Servo Tech provides hands-on repair with a 1-year warranty. Contact us to set up your repair.

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NC Servo Tech 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.