S-98189A100 0.156" ID x 0.375" OD ASME B18.21.1 General Purpose Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from A286 stainless steel construction, ideal for harsh industrial environments and extending service life
• Superior load distribution and joint stability with precise 0.156" ID and 0.375" OD dimensions for No. 6 screws, minimizing stress and preventing surface damage
• Enhanced mechanical strength and durability provided by Rockwell C22 hardness, resisting deformation under high-pressure applications
• Guaranteed dimensional accuracy and reliability through compliance with the rigorous ASME B18.21.1 standard
• Safe for sensitive applications with full compliance to RoHS 3 and REACH environmental regulations, ensuring no hazardous substances
• Consistent performance in inch-system assemblies, offering seamless integration with standard No. 6 screw fastenings
• Optimized thickness range (0.036-0.065") for versatile spacing and secure fit in various industrial setups

Professional Applications & Engineering Value

This A286 Stainless Steel Flat Washer is engineered to address critical challenges in demanding sectors such as aerospace, chemical processing, and marine equipment, where corrosion resistance and high strength are non-negotiable. Its A286 material grade provides excellent resistance to oxidation and creep at elevated temperatures, solving common failure points in extreme conditions. The precise flat washer design, conforming to ASME B18.21.1, ensures uniform clamping force for No. 6 screws, reducing the risk of loosening and fatigue in vibratory environments. By maintaining integrity under heavy loads and corrosive exposure, it enhances the longevity and safety of industrial assemblies, making it a trusted component for engineers prioritizing reliability and compliance.

Specification Summary & Compliance

This washer adheres to ASME B18.21.1 specifications, ensuring precise dimensional tolerances for the inch system, including an ID of 0.156", OD of 0.375", and thickness range of 0.036-0.065". It meets Rockwell C22 hardness requirements for mechanical robustness and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances for safe industrial use.