MPB CORP

MPB CORP specializes in the precision manufacturing of ball and roller bearings for defense and aerospace applications, with deep expertise in annular, duplex, and airframe-compatible bearing systems. Their technical capabilities encompass high-tolerance machining, materials selection for extreme operational environments, and adherence to military specification standards for load capacity, rotational precision, and fatigue resistance. The company demonstrates consistent proficiency in producing mission-critical bearing components that support aircraft, missile systems, and other high-performance defense platforms, with a focus on reliability under thermal and mechanical stress. Their specialization in annular and duplex bearing designs indicates advanced engineering in load distribution and axial/radial stability, distinguishing them as a trusted supplier for dynamic, high-vibration applications. The contractor maintains a primary relationship with the Department of Defense, delivering bearings that support aviation, missile, and ground vehicle systems. Their work with DLA Aviation further confirms integration into the defense logistics supply chain, supplying components critical to aircraft maintenance and readiness. These engagements reflect a pattern of recurring, mission-aligned procurement tied to sustainment and replacement of high-wear rotational components. MPB CORP’s core industry focus is in NAICS 332991 — Ball and Roller Bearing Manufacturing — with supplementary experience in nonferrous metal die-casting for bearing housings and structural components. This vertical integration allows them to control critical aspects of the supply chain, from raw material casting to finished bearing assembly. Their market positioning is that of a niche, precision-focused manufacturer serving defense-grade requirements with limited commercial exposure. As a small business structured as a 2L entity based in Keene, New Hampshire, MPB CORP operates without federal certifications but maintains a focused geographic footprint aligned with defense manufacturing hubs. Their operational model emphasizes technical precision, supply chain control, and direct support of DoD sustainment objectives.