S-91525A341 0.656" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments due to 316 stainless steel construction, ideal for marine, chemical, and outdoor applications.
• Precise fit for 5/8" screws with a 0.656" inner diameter, ensuring secure fastening and even load distribution.
• Enhanced durability and wear resistance from a Rockwell B68 hardness, reducing deformation under heavy loads.
• Reliable performance in demanding conditions with a robust 1.5" outer diameter and thickness range of 0.110-0.140".
• Compliance with global safety standards, including RoHS 3 and REACH, for safe use in regulated industries.
• Long-term cost savings by minimizing replacement needs in corrosive or high-stress applications.
• Versatile inch system compatibility for seamless integration with standard industrial equipment and fasteners.

Professional Applications & Engineering Value

These 316 stainless steel flat washers are engineered to address common industrial challenges, such as fastener loosening and material degradation in corrosive settings. The high molybdenum content in 316 stainless steel provides superior resistance to pitting and crevice corrosion, making them ideal for marine equipment, chemical processing plants, and food industry machinery. With precise dimensions like the 5/8" screw size compatibility and consistent thickness, they ensure uniform clamping force, prevent surface damage, and extend the lifespan of assemblies. This reliability reduces maintenance downtime and enhances safety in heavy-duty applications, offering a cost-effective solution for engineers prioritizing longevity and regulatory compliance.

Specification Summary & Compliance

This flat washer adheres to inch system standards with an inner diameter of 0.656", outer diameter of 1.5", and thickness ranging from 0.110" to 0.140", ensuring dimensional accuracy for Class 2A thread fits. Manufactured from 316 stainless steel with a hardness of Rockwell B68, it meets industry specifications for strength and corrosion resistance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming adherence to environmental and safety regulations for hazardous substance restrictions.