S-98049A640 0.531" ID x 1.125" OD Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 17-4 PH stainless steel, ideal for harsh environments and extending service life.
• High strength and durability with Rockwell C40 hardness, preventing deformation under heavy loads.
• Precise dimensional fit with 0.531" ID and 1.125" OD, ensuring reliable performance for 1/2" screw applications.
• Consistent load distribution due to the flat washer design, reducing stress and preventing joint failure.
• Full regulatory compliance with RoHS 3 and REACH, meeting strict environmental and safety standards.
• Versatile inch system compatibility, simplifying sourcing and integration into existing industrial assemblies.
• Enhanced assembly reliability from controlled thickness (0.105-0.130"), providing stable seating and vibration resistance.

Professional Applications & Engineering Value

This 17-4 PH stainless steel flat washer is engineered to address critical challenges in demanding industrial settings, such as corrosion-induced failure and mechanical stress. Its high-strength material and Rockwell C40 hardness ensure reliable performance in applications like heavy machinery, chemical processing equipment, and marine systems, where exposure to moisture and chemicals is common. The precise 0.531" ID and 1.125" OD provide an exact fit for 1/2" screw sizes, minimizing play and distributing loads evenly to prevent bolt loosening and surface damage. By combining corrosion resistance with robust construction, this washer reduces maintenance needs and enhances the longevity of assemblies in sectors like aerospace, automotive, and construction, delivering consistent value in high-stress environments.

Specification Summary & Compliance

This flat washer adheres to precise dimensional standards with an inner diameter of 0.531", outer diameter of 1.125", and thickness ranging from 0.105" to 0.130", ensuring compatibility with 1/2" screw sizes in inch-based systems. Manufactured from 17-4 PH stainless steel and hardened to Rockwell C40, it meets rigorous performance criteria for strength and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), including the latest SVHC updates, confirming its adherence to environmental and safety regulations for industrial use.