S-90313A252 0.141" ID x 1.5" 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.
• Precise dimensional fit with a 0.141" inner diameter ensures secure seating and optimal load distribution for No. 5 screws.
• Enhanced load-bearing surface provided by the large 1.5" outer diameter, reducing surface pressure and preventing material damage.
• Durable mechanical performance with a consistent thickness range of 0.060-0.090", offering reliable spacing and vibration resistance.
• Guaranteed material integrity through compliance with RoHS 3 and REACH regulations, ensuring safety and environmental responsibility.
• Broad industrial compatibility as an inch-system component, seamlessly integrating with standard North American equipment and fasteners.
• Long-term cost efficiency due to the stainless steel's resistance to rust and degradation, minimizing maintenance and replacement needs.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common challenges in industrial assembly, such as corrosion-induced failure and insufficient load distribution. Its inch-system dimensions, including the precise 1.5" OD and 0.141" ID, ensure a perfect match for No. 5 screw applications, preventing loosening under vibration and thermal cycling. The flat washer design increases the bearing surface area, effectively distributing clamp load and protecting softer materials from indentation. Widely used in electrical enclosures, marine hardware, and food processing equipment, it provides reliable performance in moist, chemical, or high-temperature environments where corrosion resistance is critical. The robust stainless steel material maintains its properties over time, reducing downtime and ensuring long-term operational integrity.

Specification Summary & Compliance

This flat washer conforms to standard inch-system measurements with an inner diameter of 0.141", outer diameter of 1.5", and thickness ranging from 0.060" to 0.090". It is manufactured from 18-8 stainless steel for consistent mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and meets current environmental and safety standards for industrial use.