S-90313A333 0.406" ID x 3" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Precise dimensional fit with 0.406" ID designed for 3/8" screws, ensuring secure fastening and reduced vibration loosening.
• Large 3" OD distributes load effectively, protecting surfaces from damage and extending the lifespan of assembled components.
• Consistent thickness range of 0.051-0.080" provides reliable performance and uniform pressure distribution in various assembly setups.
• Full compliance with RoHS 3 and REACH regulations, ensuring safe use in global markets and environmentally sensitive applications.
• Durable material properties offer excellent strength and longevity without the need for additional coatings or treatments.
• Versatile inch system compatibility simplifies sourcing and replacement in standard imperial-measurement machinery and equipment.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common challenges in industrial settings, such as corrosion from moisture, chemicals, and outdoor exposure. The stainless steel material provides inherent resistance to rust and degradation, making it suitable for applications in marine, chemical processing, and food equipment industries. With an ID of 0.406" tailored for 3/8" screws, it ensures a snug fit that minimizes movement and wear in high-vibration environments. The large 3" OD effectively spreads clamp load, preventing surface indentation and maintaining structural integrity in heavy-duty assemblies like machinery frames, construction projects, and automotive systems. Its inch system design and flat washer profile facilitate easy installation and reliable performance in industrial washers applications, reducing maintenance costs and downtime.

Specification Summary & Compliance

This flat washer adheres to standard inch system measurements with an inner diameter of 0.406", outer diameter of 3", and thickness ranging from 0.051" to 0.080", ensuring precise fit for 3/8" screw sizes. It is manufactured from 18-8 stainless steel, providing consistent mechanical properties without a rated hardness. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated industries and commitment to environmental and health standards.