HADER-SEITZ INC

Hader-Seitz Inc. specializes in the design and manufacture of precision hydraulic and pneumatic actuation systems for defense applications, with a focused expertise in cylinder assemblies and power transmission components. Their technical capabilities center on the fabrication of mission-critical actuating cylinders, brake system actuators, and transmission powertrain parts that meet stringent military performance and durability standards. The contractor demonstrates deep competency in precision machining, high-pressure fluid system integration, and assembly of components governed by military specifications, particularly for ground vehicle platforms. Their consistent delivery of NSN-coded parts such as cylinder assemblies and actuator units reflects a proven ability to meet exacting military logistics and quality control requirements under tight production cycles. The company maintains a strong and sustained relationship with the Department of Defense, supplying engineered components for armored vehicles, tactical transport systems, and combat support platforms. All recent awards confirm a pattern of recurring engagement on actuation and powertrain subsystems, indicating trusted status as a reliable supplier for mission-critical mechanical systems within military vehicle fleets. Hader-Seitz Inc. operates primarily within the mechanical power transmission and motor vehicle powertrain manufacturing sectors, translating NAICS codes 333613 and 336350 into real-world production of driveline and braking components essential for military mobility. Their market positioning is that of a niche industrial manufacturer serving defense-specific mechanical systems, with specialization in high-reliability, low-volume, high-precision components where interchangeability and ruggedization are paramount. Located in New Berlin, Wisconsin, Hader-Seitz Inc. is a small, privately held business structured as a 2L entity. While no formal government certifications are listed, their consistent performance on Defense Department contracts underscores a robust quality management system aligned with DoD supply chain expectations. Their geographic presence supports regional defense industrial base networks in the Upper Midwest, positioning them as a trusted domestic supplier for specialized mechanical subsystems.