S-90231A121 0.406" ID x 0.812" OD SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance ensures long-lasting performance in harsh environments, reducing maintenance costs and downtime
• Excellent electrical conductivity makes it ideal for electrical and grounding applications, preventing current buildup and enhancing safety
• Precise SAE standard dimensions (0.406" ID x 0.812" OD) guarantee reliable fit and consistent load distribution for 3/8" fasteners
• Durable brass material offers high strength and wear resistance, extending the lifespan of your assemblies
• REACH compliance ensures environmental safety and regulatory adherence, supporting sustainable industrial practices
• Wide thickness tolerance (0.051-0.080") accommodates manufacturing variations while maintaining secure fastening
• Lightweight and non-magnetic properties provide versatility for specialized applications in electronics and marine industries

Professional Applications & Engineering Value

This brass flat washer is engineered to address common industrial challenges, such as galvanic corrosion and electrical isolation. Made from high-quality brass material, it prevents rust and degradation in moist or chemical-exposed settings, making it perfect for marine, automotive, and electrical systems. The SAE standard design with precise 0.406" ID and 0.812" OD dimensions ensures a snug fit for 3/8" screw size fasteners, reducing vibration loosening and improving joint integrity. Its electrical conductivity is critical for grounding applications, while the flat washer profile distributes loads evenly, protecting surfaces and enhancing assembly durability in demanding industrial environments.

Specification Summary & Compliance

This washer adheres to SAE standards in the inch system, with an inner diameter of 0.406", outer diameter of 0.812", and thickness ranging from 0.051" to 0.080". It is designed for 3/8" screw size applications and is manufactured from compliant brass material. The product meets REACH (EC 1907/2006) regulations as of June 14, 2023, ensuring it is free from 235 SVHCs, and supports industry requirements for environmental and safety compliance.