Skip To Content


Defense Industry Solutions From MCMILLANCO

MCMILLANCO has a range of solutions for all branches of the military, defense, and Homeland Security markets. Our fully integrated services span product concept, design, and engineering, custom converting services, manufacturing and logistics, and warehouse management.

We offer services that support manufacturing of military-grade items subject to heavy use in harsh outdoor environments, state of the art electronic and telecommunications equipment, and other mission-critical components and products.


Converting is a fully automated manufacturing process for cutting and laminating thin sheets of material to make predetermined shapes through die cutting or kiss cutting. A specialized machine feeds the material from sheets or rolls as a die or other cutting tool stamps or cuts the shapes. Pieces are separated from the scrap material and then collected in a bin or re-rolled for end use, depending on the application.

Our equipment can work with a range of material widths and thicknesses in single layers or we can assemble a custom, multi-layer material to your specifications. Custom materials can then be die or kiss cut into desired shapes. Some common materials include, but are not limited to:

  • Plastics, polyester, and polymer films 
  • Silicone, nitrile, neoprene, and teflon gasket material
  • Laminated and coated materials
  • Rubber-based, PVC, and other foams
  • Plain and adhesive-backed materials
  • Custom multi-layer laminated or bonded materials 

Converting is a versatile manufacturing process for products that require a high degree of consistency and tight tolerances. Efficient part design and layout prior to cutting minimizes scrap and waste. Examples of applications include:

  • UV, temperature, chemical, or moisture resistant seals
  • Gaskets and seals
  • Protective overlays or membranes for control panels
  • Liquid ingress protection components
  • Protective polymer films for labels
  • Heat and flame resistant tapes and padding
  • Product packaging materials and information cards
  • EMI/RFI shielding materials
  • Indestructible labels 


Warehousing and distribution

Our warehousing and distribution services make it easy for military and defense suppliers to streamline operations and focus on other critical tasks. MCMILLANCO can help you reclaim staff time and physical space by handling your assembly, packaging, and product preparation needs.

Assembly. Our team will assemble your components into a finished product or subassembly. Additional contract packaging and converting services are also available to help prepare your products for warehousing and distribution.

Kitting. We can pack components that are used in the field or sold together such as specialized tapes and labels or instruction cards, gaskets and installation prep materials, or even pre-counted/pre-measured sets of springs, fasteners or other components for equipment repair kits.

Copacking and fulfillment. We will pack your finished products or completed kits into final packaging, label them, and prepare them for shipping.

Vendor managed inventory (VMI). Using your inventory and distribution data we’ll create a plan for ordering and stocking supplies and parts. We can also use historical data and your business goals to make projections for inventory needs going forward.

Manufacturing solutions

MCMILLANCO maintains a carefully vetted global network of manufacturing partners that can help bridge gaps in your manufacturing capabilities. As your contract manufacturer, we will connect you to the processes and finishing operations you can’t do in-house.

Or, we’ll extend your in-house capabilities for manufacturing when you need to quickly scale up production or make small batches on a tight deadline.

Our designers and engineers bring their design for manufacturing (DFM) experience to your project for processes including:

  • O-ring and gasket manufacturing
  • Powder and e-coating
  • Sheet metal fabrication
  • Spring and fastener manufacturing
  • Welding and assembly
  • Progressive and fourslide stamping
  • CNC laser cutting


With MCMILLANCO as your contract manufacturer, you can trust that parts and components will meet your specifications and quality requirements. Some examples include:

  • O-rings and gaskets for vibration and noise control
  • Magazine and firearm springs
  • Heat sink panels
  • Device housings
  • EMI/RFI shields for electronics
  • Custom electrical enclosures and cases
  • Box build assemblies
  • Heavy-duty bolts and fasteners

MCMILLANCO is based in West Liberty, Ohio. We specialize effective solutions for military, defense, and related applications using an array of custom converting, manufacturing, logistics, and warehouse management services. Our expert designers and engineers, cutting edge equipment and facilities, and worldwide network of manufacturers are ready to help, so please contact us today.