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World's Largest Selection of Ready to Ship Stock Springs

Since 1927, Century Spring Corp has been the original industry-leading spring manufacturer for both stock and custom springs. Based in the USA, Century Spring caters to engineers from around the World, seeking quick solutions for any OEM or MRO application, in both low and high volumes. Century Spring is AS9100D and ISO 9001 compliant. Our free catalog boasts the World’s largest stock offering, with over 40,000 spring designs.

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Custom Spring Manufacturing

Can’t find what you need in stock? We can Custom-manufacture per your exact print and specifications, or even a sample spring. With our state-of-the-art technology, we can custom manufacture springs and wire forms with precision tolerances that meet your exact application.

Our experienced engineers are available to answer any design questions you might have and to ensure we design for manufacturability (DFM) to reduce cost and lead time.

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Custom Parts

Reliable Manufacturing Services

Our customers rely on us for quick quote turnaround, rapid prototyping, rigorous testing, and unique expertise in custom-focused aerospace manufacturing solutions. The depth of experience of our technical team helps us deliver rapid response times for both large run orders and difficult designs.

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Quality, Compliance, and Regulatory Statements

Because parts used in aerospace projects often require quick turnaround, Century Spring has everything suppliers need for product development and manufacturing all in one place. You’ll reduce the number of vendors necessary for the project and deliver it on schedule.

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Century Spring Catalog

Century Spring Catalog

From compression springs and extension springs to retaining rings, the Century Spring catalog contains details on thousands of parts available for same-day shipping. Download the catalog now or contact us to request a physical copy.

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Credit Application

Century Spring supports net 30 payment terms. To request terms, please complete and submit our credit application. Terms and conditions apply, please contact us with any questions or special requirements.

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Have Questions?

We have an expert team of engineers and manufacturing professionals on staff. Email us at or call us at 800.247.5225 if you have questions about our services, need design support for a custom product, or simply want to get in touch with an expert.