Our Legacy: The Foundation of AMFT
Associated Spring is the origin and cornerstone of AMFT – with a heritage of engineering excellence that continues to shape our global standards.
Since 1857, Associated Spring has led the way in designing and manufacturing precision springs and washers, stampings, and engineered metal components. We are a trusted partner for industries ranging from aerospace, defense and transportation to medical, power generation and consumer products.
Our leadership is built on:
- Precision at scale – globally consistent, zero-defect components
- Innovation leadership – next-generation coiling, stamping, forming and assembly technologies
- Collaborative engineering – deep integration with OEMs and Tier1 suppliers
Our Capabilities
Product Sampling
- Compression Springs
- Accordion Springs
- Torsion Springs
- Valve Body Springs
- Valve Springs
- Extension Springs
- Flat Springs
- Constant Force Springs
- Precision Stampings
- Clutch Spring Packs
- Endoscopic Guide-Wire Spring Coil
- Brush Springs
- Power Springs
- Shape Wire Springs
- Spiral Springs
- Belleville Washers
- Wave Washers
- Finger Washers
- Fuel System Springs
- Torque Coil Springs
- Fourslide Components
- TCC Springs
- Snap Rings
Our Facilities
Our global footprint includes operations in Brazil, Mexico, Singapore, Thailand, and the U.S. (Pennsylvania and Wisconsin) that enable global consistency with local responsiveness.
Material Ranges & Types
- Coil Springs: 0.0001″ – 0.675 diameter
- Stampings: 0.003″ – 0.250″ thickness
- Shapes: Round – Ovate – Square – Rectangular – Stranded
- Materials: Stainless Steel – Titanium – Inconel – Chrome Silicon – Chrome \ Vanadium – Copper Alloys – Beryllium – Brass – Carbon Strip – Super Alloys – Music Wire
Special Orders Department
Delivers prototype and short-run custom solutions with speed and precision:
- Expert design and engineering collaboration
- TS16949, ISO14001, and ISO13485 certified manufacturing
- Full range of finishing and secondary processes
- Extensive material options – from spring steel and stainless steel to super alloys
Quality & Compliance You Can Trust
AMFT operates facilities with third‑party certifications aligned to the industries we serve.
View all of AMFT’s certifications here.
Download Associated Spring’s 2025 Engineering Guide to Spring Design!
Get the latest version of this critical reference tool for specifying the right engineered components in your application.
About the Preeminent Guide to Spring Design
Originally published in 1937, the Engineering Guide to Spring Design is considered a trusted resource amongst the engineering and design community. Associated Spring is proud to provide this updated and revised version to our customers and partners.
What’s Inside
Solve any spring design problem with the level of detail provided in this guide—even if you don’t have access to a software program. All the numbers and formulas you need are here, plus details on spring configurations and materials.