S-90313A319 0.938" ID x 3.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Optimal load distribution provided by the large 3.25" outer diameter, reducing surface pressure and preventing material damage.
• Precise compatibility with a 7/8" screw size and 0.938" inner diameter, ensuring a secure and accurate fit for fastening assemblies.
• Enhanced durability and stability from a consistent thickness range of 0.110-0.140", maintaining performance under stress.
• Compliance with stringent regulations, including RoHS 3 and REACH, making it safe for various industrial and export applications.
• Versatile inch system sizing for easy integration with standard imperial hardware and equipment.
• Reliable performance in heavy-duty applications due to robust material properties, minimizing the need for frequent replacements.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common industrial challenges such as corrosion-induced failure and uneven load distribution. Its corrosion-resistant properties make it suitable for outdoor, marine, and chemical exposure environments, extending the lifespan of fastening solutions. The precise OD and ID dimensions ensure proper alignment and stress dispersion when used with 7/8" screws, preventing loosening and joint failure in heavy-duty applications like construction, machinery, and infrastructure projects. By utilizing inch system measurements, it seamlessly integrates with existing imperial-standard components, reducing installation time and enhancing overall assembly integrity.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.938", outer diameter of 3.25", and thickness ranging from 0.110" to 0.140", designed for use with 7/8" screw sizes in inch-based systems. Manufactured from 18-8 stainless steel, it adheres to industry standards for dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial and commercial use.