S-98049A750 0.656" ID x 1.375" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 17-4 PH Stainless Steel ensures long-term reliability in harsh environments, reducing replacement frequency and maintenance costs.
• Exceptional mechanical strength and durability with Rockwell C40 hardness, providing reliable load distribution and resistance to deformation under high stress.
• Precision-engineered dimensions (1.375" OD, 0.656" ID) ensure a perfect fit for 5/8" screws, minimizing assembly errors and improving joint integrity.
• Consistent thickness control (0.105-0.130") guarantees uniform clamping force and vibration resistance in critical applications.
• Full compliance with RoHS 3 and REACH regulations ensures environmental safety and global supply chain acceptance for international projects.
• Optimized for heavy-duty industrial use, offering excellent performance in high-temperature and corrosive settings without compromising structural integrity.
• Wide application versatility due to inch system sizing and flat washer design, suitable for machinery, construction, and aerospace assemblies.

Professional Applications & Engineering Value

Engineered for demanding industrial environments, this 17-4 PH Stainless Steel flat washer addresses common failure points like corrosion, galling, and stress cracking. Its precipitation-hardened stainless steel composition maintains Rockwell C40 hardness even in elevated temperatures, making it ideal for heavy-duty machinery, chemical processing equipment, and marine applications. The precise 0.656" ID and 1.375" OD ensure optimal alignment with 5/8" screw sizes, preventing bolt loosening and distributing loads evenly to protect sensitive components. This washer solves critical issues in vibration-prone assemblies by providing a reliable, long-lasting sealing surface that resists pitting and fatigue, ultimately reducing downtime and extending equipment life in aerospace, automotive, and construction sectors.

Specification Summary & Compliance

This flat washer conforms to standard inch system dimensions with an inner diameter of 0.656", outer diameter of 1.375", and thickness range of 0.105-0.130", designed specifically for 5/8" screw sizes. Manufactured from 17-4 PH Stainless Steel and hardened to Rockwell C40, it meets rigorous industrial standards for mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements for global engineering projects.