S-92303A105 0.406" ID x 2" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Exceptional load distribution with a large 2" outer diameter, minimizing surface pressure and preventing material damage.
• Precise fit for 3/8" fasteners with a 0.406" inner diameter, ensuring secure placement and reducing assembly errors.
• Enhanced durability and deformation resistance provided by a Rockwell B83 hardness rating for long-term performance.
• Reliable dimensional stability with a thickness range of 0.110" to 0.140", maintaining consistent performance under vibration and load.
• Guaranteed environmental compliance, meeting RoHS 3 and REACH standards for safe use in regulated industries.
• Broad compatibility with inch-system components, simplifying sourcing and inventory for North American manufacturing.

Professional Applications & Engineering Value

This heavy-duty flat washer is engineered to solve critical challenges in demanding assemblies. The 18-8 stainless steel material provides excellent corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or weather, such as in marine equipment, chemical processing plants, and construction machinery. Its generous 2" OD effectively distributes clamping force over a wider area, preventing joint loosening from vibration and protecting softer surfaces from indentation or cracking. Paired with a 0.406" ID for a perfect fit on 3/8" screws, this washer ensures a secure and reliable connection, reducing maintenance needs and enhancing the structural integrity of the entire assembly in industrial and mechanical frameworks.

Specification Summary & Compliance

This flat washer conforms to standard inch system dimensions with an Inner Diameter of 0.406", Outer Diameter of 2", and a Thickness range of 0.110" to 0.140". It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B83 to ensure dimensional accuracy and mechanical strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to strict environmental and safety standards for industrial use.