S-90313A245 0.125" ID x 1.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for humid or chemically aggressive environments.
• Excellent load distribution with a 1.25" outer diameter, protecting surfaces and preventing fastener embedment.
• Precise fit for No. 4 screws ensured by the 0.125" inner diameter, reducing installation errors and improving assembly reliability.
• Durable and long-lasting performance due to the inherent strength and oxidation resistance of stainless steel.
• Versatile thickness range (0.050-0.080") allows for fine-tuning gap filling and tension in various applications.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries.
• Broad industrial compatibility with inch-system fasteners, simplifying sourcing and inventory for maintenance and production.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common failure points in industrial assemblies, such as galvanic corrosion, surface damage, and loosening under vibration. Its high-corrosion-resistant properties make it suitable for demanding environments like marine equipment, food processing machinery, and outdoor structures, where moisture and chemicals are prevalent. The precise 0.125" ID and 1.25" OD dimensions ensure a secure fit for No. 4 screws, distributing clamp load effectively to prevent joint failure and extend the service life of connected components. By utilizing inch-system specifications, it integrates seamlessly into existing North American industrial designs, reducing the need for custom parts and streamlining maintenance workflows.

Specification Summary & Compliance

This flat washer adheres to standard inch-system dimensional tolerances, with an inner diameter of 0.125", outer diameter of 1.25", and thickness ranging from 0.050" to 0.080". It is manufactured from 18-8 stainless steel for consistent performance and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for industrial use.