Precision-Machined Parts for Pumps and Industrial Systems

At Chas. G. Allen, Inc., we provide high-quality, custom parts manufacturing backed by over a century of machining expertise. Our 100,000+ square-foot facility houses state-of-the-art CNC and manual machining centers, allowing us to complete all pump repair and precision parts manufacturing entirely in-house.

We proudly serve critical industries including Aerospace, Military, Nuclear, Energy, and General Manufacturing. Whether you need a single precision-machined component or a full production run, our team delivers unmatched accuracy, reliability, and turnaround time.

Our capabilities include reverse engineering virtually any component using our portable Faro Arm coordinate measuring machine. We verify material composition with our in-house analyzer and can cast, fabricate, or machine parts to tighter tolerances than the original OEM design.

To maintain strict quality control and scheduling, every step is handled under one roof—from manufacturing wear parts for pump overhauls to final delivery via our own fleet of trucks.

What We Offer

In-House Capabilities

Quality You Can Trust

As an AS9100 and ISO 9001:2015 certified company with ITAR compliance, we meet the highest standards for traceability and performance.


Our quality assurance process includes:

  • Coordinate Measuring Machine (CMM) inspection

  • Hardness testing and material verification

  • Detailed documentation for complete process traceability

Industries Served

Need a Quote?

We specialize in short-run to mid-volume production, complex geometries, and tight-tolerance machining.

Contact us today to discuss your specifications, materials, and lead time—we’ll deliver a solution that meets your needs.