S-90474A104 0.281" ID x 0.5" OD ASME Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 17-7 PH stainless steel material, ideal for harsh environments and extended service life.
• Superior load distribution with precise 0.281" ID and 0.5" OD, reducing surface pressure and preventing joint loosening.
• Enhanced durability and strength due to Rockwell C40 hardness, resisting deformation under high-stress conditions.
• Reliable dimensional consistency with thickness ranging 0.051-0.080", ensuring uniform performance in inch-system assemblies.
• Broad compatibility with 1/4" screw sizes, simplifying inventory and installation across various industrial applications.
• Compliance with global safety standards including RoHS 3 and REACH, ensuring environmentally responsible and safe usage.
• Long-term cost efficiency by minimizing replacement needs and maintenance in demanding operational settings.

Professional Applications & Engineering Value

These 17-7 PH stainless steel flat washers are engineered to address critical challenges in industrial and engineering environments, such as corrosion-induced failure and mechanical stress. The high-strength material and Rockwell C40 hardness provide excellent resistance to wear and environmental degradation, making them suitable for heavy-duty applications in aerospace, automotive, and marine sectors. Their precise 1/4" internal diameter and 0.5" outer diameter ensure optimal load distribution, preventing surface damage and maintaining bolt integrity. By incorporating RoHS 3 and REACH compliance, these washers support sustainable manufacturing practices while delivering reliable performance in corrosive or high-temperature settings, reducing downtime and maintenance costs.

Specification Summary & Compliance

This flat washer adheres to inch-system measurements with an ID of 0.281", OD of 0.5", and thickness between 0.051-0.080", designed for use with 1/4" screw sizes. Manufactured from 17-7 PH stainless steel and hardened to Rockwell C40, it meets stringent quality standards for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use worldwide.