Submarine Industrial Base
Proud to supply components to the USA's SIB

Large-format machining and fabrication for aircraft, missile, and naval systems

Submarine Industrial Base Manufacturing

Chapco manufactures build-to-print fabricated, machined, welded, and assembled components for Prime contractors, Tier 1 and Tier 2 suppliers, and OEMs supporting the United States Submarine Industrial Base.

As an ITAR-registered manufacturer with a 150,000-square-foot manufacturing campus and multiple automated production cells, Chapco supports prototype, low-rate production, full-rate manufacturing, sustainment programs, and modernization initiatives.

Chapco builds to NIST SP 800-171 and meets the safeguarding requirements of DFARS 252.204-7012. A current DD Form 2345 through the Joint Certification Program clears us to receive your controlled technical data. SUBMIT AN NDA.

Chapco, Inc. High Performance Manufacturing Solutions new HQ at 12 Bridge St., Deep River, CT

Chapco’s new 150,000 sqft facility supports large-format fabrication and machining work for naval systems including the sub marine industrial base and land defense systems.

12 Bridge St., Deep River, CT.

Strategically Located

Located in southeastern Connecticut, our 150,000 sqft manufacturing campus sits within the core of the Northeast naval defense supply chain, providing responsive support, reduced transportation times, and efficient support for submarine construction, modernization, sustainment, and critical infrastructure programs.

Chapco supplies build-to-print fabricated, machined, welded, and assembled components for customer-designed and customer-qualified systems supporting the United States Submarine Industrial Base (SIB).

From electrical enclosures and structural weldments to machined components, equipment skids, operator consoles, and sustainment components, Chapco helps defense manufacturers scale production while maintaining quality, schedule performance, and manufacturing consistency.

Chapco supports suppliers serving the Submarine Industrial Base through:

  • Naval shipbuilding programs
  • Submarine systems
  • Shore infrastructure
  • Power distribution systems
  • Communications systems
  • Command and control systems
  • Support equipment programs
  • Sustainment and modernization initiatives
Interior of a gray metal sci‑fi cargo cabin with a central door, overhead lights, and a long workbench along the right wall.

Chapco, Inc.

Credentials

  • NAICS 332322/SIC 3334 and 3542
  • CAGE 8S006
  • SAM UEI: VUA5GYK66K98
  • ISO 9001:2015 Certified Quality Management System
  • ITAR Registered with DDTC
  • JCP Registered
  • NIST 800-171 compliant and on CMMC 2.0 Track
  • Build-to-Print Manufacturing Partner
U.S. Department of State seal beside the ITAR REGISTERED logo.
Seal of the Defense Logistics Agency featuring a spreading eagle over a blue field with stars and a red-and-white striped shield; caption beneath reads 'JCP Registered'.
ITAR compliance badge: blue circle with 'ITAR' in the center and 'International Traffic in Arms Regulations' around the rim.
AMTIVO ISO 9001:2015 Certified Quality Management badge

Build-to-Print Precision Components for the Submarine Industrial Base

Enclosures & Cabinets

  • Shipboard equipment enclosures
  • Submarine equipment housings
  • Electrical cabinets
  • Control cabinets
  • Battery cabinet structures
  • UPS cabinet assemblies
  • Junction box enclosures
  • Terminal cabinets
  • Network equipment cabinets
  • Communications equipment housings
  • Equipment chassis
  • Rack structures
  • Electronic equipment enclosures
  • Operator consoles
  • Control stations

Structural Fabrications & Weldments

  • Equipment skids
  • Structural weldments
  • Machine frames
  • Mounting structures
  • Support stands
  • Foundations
  • Equipment supports
  • Platform components
  • Reinforcement assemblies
  • Fabricated brackets
  • Structural mounting systems

Precision Fabricated & Machined Components

  • Mounting plates
  • Precision brackets
  • Machined bushings
  • Spacers
  • Clevises
  • Standoffs
  • Precision machined hardware
  • Grounding hardware
  • Bonding hardware
  • Copper bus bars
  • Power distribution conductors
  • Vented panels
  • Perforated panels

Sustainment & Modernization Components

  • Legacy replacement part
  • Installation kits
  • Field support kits
  • Sustainment components
  • Modernization components
  • Obsolescence mitigation manufacturing
  • Life-extension program components
  • Replacement assemblies manufactured from approved technical data

Fabrication Services for Defense and Naval Manufacturing

Precision Sheet Metal Fabrication

  • Fiber laser cutting
  • Automated punch-laser fabrication
  • CNC precision forming
  • CNC press brake bending
  • Robotic bending
  • Complex sheet metal assemblies
  • Hybrid fabricated-machined components

Welding & Structural Assembly

  • MIG welding
  • TIG welding
  • Resistance welding
  • Structural welding
  • Cosmetic weld finishing
  • Multi-material fabrication
  • Complex weldments

CNC Machining

  • CNC milling
  • CNC turning
  • Drilling
  • Tapping
  • Threading
  • Tight-tolerance machined components
  • Fabricated-machined assemblies

Finishing & Identification

  • Powder coating
  • Passivation
  • Anodizing
  • Plating
  • Laser marking
  • Part identification
  • Surface treatments
  • Corrosion-resistant finishes

Assembly Services

  • Mechanical assemblies
  • Electrical assemblies
  • Electromechanical assemblies
  • Integrated subassemblies
  • Kitting
  • Packaging
  • Fulfillment

FAQs

Does Chapco manufacture components for the Submarine Industrial Base?

Yes. Chapco manufactures build-to-print fabricated, machined, welded, and assembled components for Prime contractors, Tier suppliers, and OEMs supporting submarine and naval programs.

Does Chapco offer ITAR-compliant manufacturing?

Chapco is ITAR registered with DDTC and supports customers operating within regulated defense supply chains.

Can Chapco manufacture build-to-print ruggedized electrical cabinets and equipment enclosures?

Yes. Chapco manufactures build-to-print ruggedized electrical cabinets, equipment enclosures, UPS cabinet structures, battery cabinet assemblies, control cabinets, rack structures, and operator consoles for Prime contractors, Tier suppliers, and OEMs supporting defense and Submarine Industrial Base programs.

Does Chapco support sustainment and modernization programs?

Yes. Chapco manufactures legacy replacement components, installation kits, field support kits, sustainment components, modernization assemblies, and life-extension program components using approved technical data supplied by customers.

What types of components does Chapco manufacture for submarine and naval programs?

Chapco manufactures equipment enclosures, electrical cabinets, chassis, rack structures, control consoles, operator stations, structural weldments, equipment skids, machine frames, mounting structures, thermal-management panels, bus bars, grounding hardware, machined components, installation kits, and sustainment parts.

What quality certifications does Chapco hold?

Chapco maintains an ISO 9001:2015 certified quality management system, certified through AMTIVO under an ANAB-accredited program, for the manufacture of sheet metal parts for commercial and defense industries. Chapco is also ITAR registered and AWS certified (American Welding Society, Connecticut Section),  is JCP registered and is compliant with NIST SP 800-171 and preparing for CMMC Level 2 certification. Quality documentation includes Certificates of Conformance, First Article Inspection (FAI), material certifications and laser QC scan.

Can Chapco support prototype, low-rate initial production, and full-rate production programs?

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Yes. Chapco supports defense manufacturing programs from prototype and First Article Inspection (FAI) through low-rate initial production (LRIP), full-rate production, sustainment, and modernization initiatives.

Submit your drawings through Chapco’s online Request for Quote form, or arrange a call or facility visit. SOLIDWORKS is preferred; accepted file formats include PDF, DWG, DXF, and STP.

Where is Chapco located relative to the Submarine Industrial Base?

Chapco operates a 150,000-square-foot manufacturing campus in southeastern Connecticut, at the center of the Northeast naval defense manufacturing corridor. Our location supports responsive collaboration with shipbuilders, defense contractors, Tier suppliers, and OEMs serving the United States Submarine Industrial Base.