MOOG D664-353C
Every minute your MOOG D664-353C is down costs your operation. We offer expedited repair turnaround and exchange units to keep production moving.
Representative image — actual product may differ
How We Repair Your Unit
Our process involves a teardown of your MOOG D664-353C, mineral bath and ultrasonic cleaning, and reassembly with quality parts to restore operation.
Independent Repair Facility
NC Servo operates independently, so we’re not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.
50+ years of expertise in MOOG D664-353C Valve Repair
Frequently Asked Questions
We give you a straight assessment after inspection. If repair doesn’t make sense, we’ll let you know and discuss alternatives.
Send the unit in whatever condition it’s in. We clean everything during teardown before inspection begins.
Yes. If the unit can’t be repaired, we contact you with options before doing anything further.
We regularly work on units with missing labels. Send us a few images and any visible part numbers, and we can usually match it.
Standard turnaround is 1-3 weeks. Rush options are available for time-sensitive situations.
Repair Process
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.
- Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
- Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
- Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
Testing and Bench Verification
NC Servo operates thirteen in-house test stands, 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 consistent performance.
Where the MOOG D664-353C Is Used
Our expert repair services for the MOOG D664-353C are trusted across various sectors including Industrial Machinery, Marine, and Oil & Gas. We understand the unique demands of valves in these environments.
Turnaround and Shipping
As a specialist for MOOG D664-353C services, NC Servo 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.
Stock Availability
With more than 17,000 valve units in inventory, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.
Maintenance Tips
- Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.
- Monitor operating temperatures to identify potential issues before failure occurs.
- Replace inline filters according to maintenance schedules to maintain proper flow rates.
Ready to Restore Your MOOG D664-353C?
Request pricing, availability, and turnaround for your MOOG D664-353C. NC Servo provides independent repair with a 1-year warranty. Contact us to start your repair.
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.