Military spring manufacturers
Our precision-engineered military springs meet the defense industry’s highest standards, from custom mil spec springs to high-performance military gas springs. Discover our range of components built to endure extreme conditions whilst offering uncompromising, precision performance.
Aerospace and defense component experts
Lesjöfors is a trusted global partner for military and defense spring solutions. We’ve been designing and manufacturing high-performance coil springs and wire forms for decades. Our parts are trusted in some of the toughest environments—on land, in the air, and at sea. We also produce pressings and gas springs that are built to last. Every piece is engineered for precision, reliability, and strength – in compliance with defense sector standards.
Custom coil springs and wire forms for the military & defense sector
Lesjöfors specialises in designing and producing custom springs tailored to the unique demands of the military and defense sectors. From initial concept to finished product, our engineers collaborate closely with defense clients to deliver springs that meet extreme technical requirements and operational needs.
Whether exposed to shock loads, high stress, or corrosive atmospheres, our springs perform with the utmost reliability.
Coil springs, wire forms, pressings, and gas springs for extreme conditions
Our springs are engineered for critical performance in environments where failure is not an option. We use premium materials and advanced manufacturing techniques to make parts you can rely on.
Our coil springs, wire forms, pressings, and gas springs are made for demanding conditions. They can take on heavy loads, high temperatures, and harsh environments. Each one is made to perform in defense, naval, and land-based military systems – environments where strength and reliability are essential.
Your trusted partner for military spring applications
Lesjöfors is a trusted partner in military applications, combining advanced production capabilities with a deep understanding of critical material requirements to meet stringent standards for anti-spark performance, Electromagnetic Compatibility (EMC), Electromagnetic Interference (EMI) mitigation, and Magnetic Signature Reduction (MSR).
We deliver precision-engineered springs and pressings for the most demanding defense environments.
Why choose Lesjöfors for military spring design and manufacturing?
Built to endure extreme conditions
Our defense springs are engineered to last. We use rigorously tested materials and treatments to ensure longevity in corrosive, high-stress, and high-temperature settings.
Precision where it matters most
When designing and manufacturing our precision-engineered springs, our processes are tightly controlled to deliver the exact specifications needed for complex systems.
Highest quality materials
We work with a range of high-performance spring materials, such as alloys and specialist steels, that meet military and aerospace specifications, ensuring compliance, reliability and durability.
Types of springs used in military & defense
Explore compression springsCompression springs
- All types: Cylindrical, convex, conical, concave, variable pitch
- Wire diameter: 0.03 mm to 80 mm
- Features: Round, square, or rectangular wire profiles
- Materials: Carbon steel, stainless steel, & alloys
- Stock & custom options available
Explore extension springsExtension (tension) springs
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Designed for: Static, quasi-static, & dynamic loads
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Wire diameter: 0.1 mm to 65 mm
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Features: Hooks, loops, screw plugs, shackles, and custom ends
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Materials: Carbon steel, stainless steel, & alloys
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Stock & custom options available
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Explore torsion springsTorsion springs
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Designed for: Torque with rotating movement
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Wire diameter: 0.1 mm to 65 mm
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Features: Legs can be straight, bent, or custom‑formed
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Materials: Carbon steel, stainless steel, & alloys
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Stock & custom options available
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Explore traction gas springsTraction gas spring
- Designed for: Force in the pulling (tension) direction
- Performance: Precise and reliable retraction force
- Ideal for: Applications requiring controlled retraction
- Configuration: Available off-the-shelf or engineered to order
- Stock & custom designs available
Explore wire formsWire forms
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Types: Custom 2D/3D bent wire parts
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Wire diameter: 0.1 mm to 25 mm
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Features: Complex shapes, no standard ends
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Materials: Carbon steel, stainless steel, & alloys
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Explore disc springsDisc springs
Market leaders in military & defense springs
Lesjöfors is recognised worldwide for engineering excellence and supply reliability in the defense sector. We’ve spent decades delivering reliable results. Our quality is certified, and we work with clients around the world. They trust us to supply precision springs and stampings that work under pressure, every time.
Military applications of Lesjöfors’ springs
Lesjöfors’ springs support a wide range of defense technologies and systems. Each one is built to perform reliably, even in the toughest environments.
Armored vehicles
Our springs support suspension systems, seating, hatch controls, and braking systems. They’re also used in other critical parts. Each one is designed for shock absorption and reliable performance on rugged terrain.
Missile systems and rocket motors
We supply precision-engineered springs for ignition, propulsion, and guidance systems. They’re also used in sensor stabilization. Each one is built for accuracy and shock resistance where it matters most.
Naval applications
Our springs are made with specialist materials and coatings to resist corrosion. They’re built to last in harsh marine environments. You’ll find them in propulsion systems, gunfire control, missile launchers and sonar applications.
Defense electronics and communication equipment
Our springs provide stable performance in rugged electrical connectors. They’re also used in antenna adjustment mechanisms for communications and emergency beacons. You’ll find them in other sensitive mechanical assemblies too, where reliability is key.
Small arms and squad support weapons
Springs are used in firing mechanisms, magazine feed systems, and recoil absorption. They enhance reliability and safety in critical systems.
Safety and emergency systems
Springs are essential in parachute deployment, ejection seats, and escape mechanisms. They’re engineered for dependable performance in life-critical situations.
Aerospace systems
We supply precision springs for landing gear, actuators, flight controls, and other safety-critical aerospace parts. They’re also used in satellite antenna arrays. Each one is built to work reliably under extreme temperatures and constant vibration.
Other specialized applications
Springs are used in sights, warship sonar, torpedoes, and Eurofighter components. They’re also vital in toughened military equipment. Each one is a bespoke solution designed to meet specific needs.
Internationally recognized quality standards
Lesjöfors springs are manufactured in accordance with major defense and aerospace standards. Our springs and stampings range from 0.01 mm to 80 mm+, providing solutions for every high-performance defense function.
- ISO 9001
- ISO 14001
- ISO 45001
- IATF 16949 (where applicable)
- DIN and other international defense specifications
We meet or exceed the standards required by defense clients across the UK, Europe, and the US, with full traceability and documentation.
Engineering excellence & world-class manufacturing
Our in-house engineering teams and modern facilities enable full control over the entire production process, from initial design to final inspection. We offer:
- Advanced spring coiling, wire forming, pressing and stamping technologies
- Material testing and certification
- CNC machining and in-house tooling
- Assembly and finishing
- Rigorous quality assurance systems
Highest quality materials
By delivering springs and pressings made from non-ferrous materials – crucial for meeting anti-spark standards and reducing explosion risks – Lesjöfors is uniquely equipped to meet the specialised requirements of military connector components.
All our products use only proven, high-performance materials, selected to meet the standards of the defense industry. From non-magnetic materials, corrosion-resistant stainless steels to nickel alloys and high-tensile carbon steels, our materials ensure performance under pressure, and over time.
Springs, wire forms, and pressings: The future of the defense sector
We don’t just make springs and pressings. We shape the future of defense technology. Investing in new materials and advanced production methods, we continue to develop innovative spring and pressings solutions that meet the changing needs of modern defense systems.
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