JOHNSON BRASS & MACHINE FOUNDRY INC

Johnson Brass & Machine Foundry Inc. specializes in precision manufacturing of mission-critical metal components for defense and aerospace systems, with deep expertise in aircraft parts, crane and hoist assemblies, and high-integrity fasteners. The company produces piston guides, drum assemblies, and other complex machined parts using advanced casting, forging, and machining techniques, ensuring tight tolerances and material integrity required for military and aviation applications. Their technical capabilities span the full fabrication lifecycle—from raw material transformation to final assembly—with proven proficiency in producing gaskets, seals, springs, valves, and specialized hardware to military specifications. The contractor’s focus on durable, high-stress components positions them as a trusted supplier for systems requiring reliability under extreme operational conditions. The company maintains a consistent relationship with the Department of Defense, delivering precision-engineered parts for aircraft systems, ground support equipment, and heavy machinery used in military logistics and operations. Their work supports both airborne platforms and ground-based infrastructure, with a clear emphasis on components critical to propulsion, lifting, and sealing functions. While recent awards lack detailed agency identifiers, the overwhelming majority of contracts are tied to DoD programs, indicating a long-standing, mission-aligned partnership. Johnson Brass & Machine Foundry Inc. operates primarily within NAICS 336413 (aircraft parts), 333923 (overhead crane systems), and 332722 (fasteners), reflecting a strategic focus on defense-critical mechanical subsystems. They serve as a niche manufacturer for specialized, low-volume, high-reliability components often overlooked by larger suppliers, filling gaps in the defense supply chain for custom-fabricated metal parts. As a small, family-owned business based in Saukville, Wisconsin, the company operates under a 2L entity structure with no formal government certifications. Their geographic footprint is localized but strategically aligned with defense manufacturing corridors in the Upper Midwest, enabling responsive production and logistics support for federal customers.