S-97725A640 48.3 mm ID x 54.9 mm OD DIN 7603 Metal Sealing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality copper material, ensuring long-term reliability in harsh environments.
• Excellent electrical conductivity for efficient current flow in electrical assemblies and grounding applications.
• Optimal thermal performance due to copper's heat dissipation properties, ideal for high-temperature settings.
• Precise dimensional accuracy with 48.3mm ID and 54.9mm OD, guaranteeing a perfect fit for M48 screws.
• Enhanced load distribution across surfaces, reducing stress and preventing damage to connected components.
• Compliance with DIN 7603 standards ensures consistent quality, interchangeability, and reliability in industrial use.
• Durable construction with a thickness range of 1.8-2.2mm, providing stability and longevity under mechanical stress.

Professional Applications & Engineering Value

This M48 metric copper flat washer is engineered to address common industrial challenges, such as galvanic corrosion and electrical inefficiency. Made from copper material, it offers inherent corrosion resistance, making it suitable for outdoor, marine, and chemical-exposed environments. The precise flat washer design, conforming to DIN 7603, ensures uniform pressure distribution, preventing loosening and component wear in heavy-duty assemblies. Its high electrical conductivity is critical for electrical systems, transformers, and grounding applications, while the thermal properties aid in heat management for engines and machinery. Ideal for industrial washers in automotive, aerospace, and power generation, this washer enhances safety and performance by mitigating electrical faults and mechanical failures.

Specification Summary & Compliance

This washer meets DIN 7603 specifications, with an inner diameter of 48.3mm, outer diameter of 54.9mm, and thickness of 1.8-2.2mm, ensuring precise dimensional tolerances for M48 screw sizes. It is manufactured from copper for consistent performance and complies with industry standards for reliability. While hardness is not rated, the design focuses on durability and compatibility. The product adheres to common regulatory requirements, such as RoHS and REACH, for environmental safety in various applications.