S-91950A056 1.625" ID x 3" OD SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction, ideal for chemical, marine, and outdoor applications.
• Enhanced load distribution with a large 3" outer diameter, reducing surface pressure and preventing damage to assembled materials.
• Precise fit for 1 1/2" screws with a 1.625" inner diameter, ensuring secure fastening and minimizing loosening from vibration.
• Durable and reliable performance with a thickness range of 0.153-0.213", providing consistent spacing and mechanical stability.
• Compliance with industrial safety standards, meeting RoHS 3 and REACH regulations for safe use in regulated sectors.
• Wide applicability across industries, from heavy machinery to structural assemblies, thanks to SAE designation and inch measurements.
• Long-term cost efficiency by resisting rust and degradation, lowering maintenance and replacement frequency.

Professional Applications & Engineering Value

This 316 stainless steel SAE flat washer is engineered to address common industrial challenges, such as corrosion-induced failure and uneven load distribution. Its high molybdenum content in the 316 grade provides exceptional resistance to chlorides and acidic conditions, making it suitable for marine equipment, chemical processing plants, and food industry machinery. The flat washer design with a 1.625" ID and 3" OD ensures a broad bearing surface, which helps prevent bolt embedding and material fatigue in heavy-duty applications. By maintaining integrity under stress and environmental exposure, it reduces downtime and extends the lifespan of assemblies, offering reliable performance in precision washers for critical fastening systems.

Specification Summary & Compliance

This washer adheres to SAE standards with inch system measurements, including an inner diameter of 1.625", outer diameter of 3", and thickness ranging from 0.153" to 0.213" for compatibility with 1 1/2" screw sizes. It is manufactured from 316 stainless steel for consistent dimensional accuracy and mechanical properties. 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 use.