S-91860A044 0.141" ID x 0.281" OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 17-7 PH stainless steel ensures long-term reliability in harsh environments, reducing replacement frequency.
• Excellent load distribution with precise 0.141" ID and 0.281" OD protects No. 5 screw assemblies from surface damage and loosening.
• Consistent performance under stress due to Rockwell C40 hardness, maintaining shape and function in high-pressure applications.
• Reliable dimensional stability with a thickness range of 0.025-0.039" for secure fitting and vibration resistance.
• Full environmental compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries and global markets.
• Optimized for inch-system fastening, providing seamless integration with standard No. 5 screw sizes in industrial assemblies.
• Enhanced durability from premium material and manufacturing, supporting heavy-duty and high-performance applications.

Professional Applications & Engineering Value

This 17-7 PH stainless steel flat washer is engineered to address common industrial challenges such as corrosion, vibration-induced failure, and assembly inconsistency. Its high-strength material and Rockwell C40 hardness provide exceptional resistance to environmental factors and mechanical stress, making it ideal for demanding applications in aerospace, automotive, and marine sectors. The precise inch-system dimensions, including a 0.141" ID and 0.281" OD, ensure perfect alignment with No. 5 screws, reducing installation errors and enhancing load distribution. By combining corrosion resistance with rigorous compliance to RoHS and REACH, this washer supports sustainable and reliable operations in critical engineering environments, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This flat washer adheres to standard inch-system measurements with an inner diameter of 0.141", outer diameter of 0.281", and thickness ranging from 0.025" to 0.039", designed specifically for No. 5 screw sizes. It meets industry hardness standards at Rockwell C40 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global supply chains.