S-90313A313 0.562" 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
• Optimal load distribution across a large 3" outer diameter surface, preventing surface damage and joint loosening
• Precise fit for 1/2" screws with 0.562" inner diameter, ensuring secure fastening and alignment
• Enhanced durability with substantial 0.240-0.272" thickness, providing reliable performance under heavy loads
• Compliance with international safety standards including RoHS 3 and REACH, ensuring environmental and workplace safety
• Versatile inch system compatibility for seamless integration with existing industrial equipment and standards
• Maintenance-free operation due to stainless steel's inherent resistance to rust and degradation

Professional Applications & Engineering Value

This heavy-duty flat washer addresses critical engineering challenges in industrial applications where corrosion resistance and load distribution are paramount. The 18-8 stainless steel composition provides exceptional protection against rust and chemical exposure, making it suitable for manufacturing plants, marine equipment, and outdoor structures. With its generous 3" outer diameter and substantial thickness, it effectively disperses clamping force over wider surfaces, preventing material deformation and maintaining bolt tension in high-vibration environments. The precise 0.562" inner diameter ensures perfect alignment with 1/2" screw size fasteners, reducing installation time and improving assembly reliability. These industrial washers deliver long-term value by minimizing maintenance needs and extending service life in demanding applications.

Specification Summary & Compliance

This flat washer features inch system dimensions with 3" outer diameter, 0.562" inner diameter, and 0.240-0.272" thickness range. Manufactured from 18-8 stainless steel for consistent performance, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety standards for industrial components.