
Military and defense manufacturers rely on precision components that perform consistently in the world’s most demanding operating environments.
Wermke Spring manufactures custom military springs and precision wire forms built directly to customer drawings and engineering specifications for defense OEMs, government contractors, and Tier 1 and Tier 2 suppliers supporting ground vehicles, aerospace platforms, weapons systems, communications equipment, and tactical electronics.
Backed by more than 70 years of manufacturing experience and an ISO 9001:2015-certified Quality Management System, we manufacture custom spring components that meet customer specifications for performance, durability, and repeatable quality.
Every military program demands dependable manufacturing, documented quality, and consistent performance. Wermke manufactures directly to customer drawings while coordinating heat treatment, plating, coating, inspection, and specialized processing through a network of qualified manufacturing partners. Our focus is simple: manufacture your component exactly as specified and deliver repeatable quality from prototype through production. Contact us to learn more or request a quote for your spring manufacturing needs.
Custom Springs for Defense Applications
Military equipment depends on thousands of mechanical components working together under demanding operating conditions. Springs provide controlled force, motion, retention, positioning, preload, vibration management, and mechanical reliability throughout defense systems.
Wermke manufactures compression springs, extension springs, torsion springs, and precision wire forms built directly from customer drawings for military and defense applications.
Common Military Applications for Springs
Springs are used throughout defense platforms to store energy, apply force, absorb shock, and control motion. Applications include:
Ground Vehicles:
- Tactical wheeled vehicles
- Armored vehicles
- Combat engineering equipment
- Weapon stations
- Braking systems
- Fuel systems
- Hatch mechanisms
- Suspension systems
- Weapon mount stabilization
Aerospace and Aviation:
- Flight control mechanisms
- Landing gear systems
- Missile and rocket assemblies
- Airframe latches and actuation
- UAV systems
- Military aircraft
- Helicopters
- Missile systems
- Satellite systems
Weapons & Weapon Systems:
- Trigger return springs
- Firing pin springs
- Magazine springs
- Ejection and recoil systems
- Weapons platforms
- Fire control systems
- Launch mechanisms
- Weapon retention
- Munitions handling
Naval and Marine Systems:
- Hatch seals and dampers
- Communication array components
- Submersible equipment
- Launch control systems
Electronics and Communications:
- Connectors and contacts
- Switches and relays
- Antenna deployment
- Rackmount and support systems
- Electronic warfare
- Radar systems
- Tactical communications
- Ruggedized electronics
In defense applications, component reliability directly affects equipment readiness, operational performance, and mission success. That’s why military manufacturers depend on suppliers capable of manufacturing precision components consistently, accurately, and exactly to specification.

Types of Springs Used in Military Applications
Military equipment often incorporates multiple types of springs, depending on the mechanical function:
Compression Springs
- Store and release energy
- Used in shock absorption, latching, and load control systems
Extension Springs
- Apply tension to return components to position
- Common in hatches, actuators, and firearm assemblies
Torsion Springs
- Apply torque to rotating components
- Found in latches, hinges, and aircraft control surfaces
Wire Forms
- Custom bent wire configurations for specific mounting, deflection, or contact needs
- Ideal for communication systems and weapon retention
Every spring is manufactured to your specified dimensions, material requirements, tolerances, and performance criteria. Whether your program requires prototype quantities or scheduled production releases, Wermke manufactures to your engineering specifications without design reinterpretation.
Material Considerations for Military Springs
Military spring performance begins with selecting the appropriate material for the application’s operating environment. Wermke manufactures using a wide range of customer-specified materials including, but not limited to:
- 302, 304, 316 Stainless Steel – Corrosion resistance; ideal for marine, aerospace, and outdoor use
- 17-7 PH Stainless Steel – Excellent strength and fatigue life; suitable for high-cycle and high-temperature applications
- Inconel and Elgiloy® – High-temperature and extreme environment performance
- Music Wire and Chrome Silicon – High tensile strength for dynamic and load-bearing systems
- Phosphor Bronze and Beryllium Copper – Electrical conductivity and non-magnetic properties for electronics and communications
Wermke Spring can provide full material traceability and documentation to meet compliance and quality requirements, including DFARS, MIL-SPEC, and other standards.
Frequently Asked Questions About Military Springs
What makes a spring suitable for military use?
Military springs must meet rigorous specifications for performance, strength, and durability. This includes fatigue resistance, corrosion resistance, dimensional accuracy, and often adherence to MIL-SPEC or government standards.
Can Wermke Spring manufacture MIL-SPEC springs?
Yes. Wermke manufactures spring components to customer drawings and specifications, including projects requiring customer-defined military standards, inspection documentation, and material certifications. Please contact us to discuss your program requirements.
Do you supply springs for defense contractors?
Yes. We work with both OEMs and Tier 1 defense suppliers to manufacture custom springs for ground, air, sea, and communications systems.
What kind of testing do you perform on military springs?
We can provide in-house and third-party testing for load, torque, fatigue life, dimensional tolerances, and material composition. Special testing per customer requirements is available.
Build-to-Print Manufacturing
Wermke specializes in manufacturing custom springs and wire forms directly from customer drawings and engineering specifications. Our manufacturing process is built around precision, repeatability, and quality. We support:
- Prototype development
- Low-volume production
- Scheduled production releases
- Long-term manufacturing programs
Whether your project supports a defense vehicle, communications platform, aerospace system, or tactical equipment, our focus remains the same:
Manufacture exactly what you designed.
Trust Wermke Spring for Military-Grade Spring Manufacturing
Wermke Spring brings decades of experience and a track record of reliability to the military and defense sectors. Whether you need high-volume production or low-run specialty components, we deliver custom military springs designed for performance in the world’s most demanding environments.
From vehicle suspension systems to missile deployment and tactical communications, our springs help defense systems operate smoothly and safely.
Contact Us Today
If you’re sourcing a reliable manufacturing partner for custom military springs or precision wire forms, we’d welcome the opportunity to review your drawing. Wermke Spring manufactures to your specifications with ISO 9001:2015-certified processes, dependable quality, and responsive support.
Submit your drawing today to request a quote.
Contact Wermke Spring at (636) 677-5500 or reach out online to request a quote, review your project specs, or learn more about our defense manufacturing capabilities. We’re proud to support mission-critical applications with springs that deliver strength, precision, and trustworthiness.



