D & D MACHINERY & SALES INC

D & D Machinery & Sales Inc. specializes in the precision manufacturing of industrial metal components and mechanical systems for defense and aerospace applications. Their core capabilities include the fabrication of rolling mill equipment, power transmission components such as connecting links and rigging hardware, and specialized metal stampings for closures and fasteners. The company demonstrates deep technical expertise in metalworking processes including forging, machining, and assembly of high-tolerance parts used in military vehicles, aircraft systems, and logistics equipment. Their work on hoist trolleys, filter dryers, and chain bag assemblies indicates proficiency in ruggedized mechanical systems designed for harsh operational environments, with a focus on durability, reliability, and compliance with military specifications. The contractor maintains a strong relationship with the Department of Defense and DLA Troop Support, delivering mission-critical mechanical components that support ground transportation, aircraft maintenance, and supply chain infrastructure. Their contracts consistently involve parts integral to equipment mobility, material handling, and mechanical subsystems, suggesting a trusted role in sustaining military logistics and readiness. Industry focus centers on NAICS 333519 (rolling mill and metalworking machinery), 333613 (mechanical power transmission equipment), and 332722 (bolt and fastener manufacturing), positioning them as a niche supplier of engineered metal components for defense and industrial applications. They serve as a specialized manufacturer rather than a general contractor, with expertise in producing custom, low-volume, high-integrity parts for critical systems. As a Women-Owned Small Business headquartered in San Antonio, Texas, D & D Machinery & Sales Inc. leverages its small business status and WOSB certification to compete in federal procurement channels. Their geographic presence supports regional defense supply chains while their certifications enhance eligibility for set-aside contracts, reinforcing their role as a compliant, agile supplier within the national security industrial base.