S-90313A311 1.062" ID x 3.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Optimal load distribution with 3.5" outer diameter, preventing surface damage and maintaining joint integrity
• Precise fit for 1" screws with 1.062" inner diameter, reducing installation time and improving assembly accuracy
• Consistent performance guaranteed by 0.240-0.272" thickness range, providing reliable spacing and vibration resistance
• Environmental compliance with RoHS 3 and REACH standards, meeting global regulatory requirements for industrial use
• Durable inch system design compatible with standard imperial components, ensuring seamless integration in existing setups

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer delivers critical engineering solutions where corrosion resistance and dimensional stability are paramount. The inch system design with precise 1.062" ID ensures perfect alignment with 1" fasteners, eliminating play and reducing stress concentration in industrial assemblies. Its large 3.5" OD effectively distributes clamping force across wider surfaces, protecting soft materials and preventing embedment in structural applications. The controlled thickness tolerance (0.240-0.272") maintains consistent spacing in heavy-duty equipment, construction frameworks, and marine environments where moisture exposure demands stainless steel's durability. This washer solves common failure points in bolted connections by combining material integrity with precision manufacturing.

Specification Summary & Compliance

Manufactured to standard inch system dimensions with 1.062" inner diameter and 3.5" outer diameter. Thickness maintained within 0.240-0.272" tolerance range for consistent performance. Constructed from 18-8 stainless steel for inherent corrosion resistance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to international environmental and safety standards for industrial components.