S-90295A222 0.406" ID x 0.812" OD Plastic Washers

Key Features & Benefits at a Glance

• Superior Temperature Performance: Withstands extreme conditions from -40°F to 300°F, ensuring reliable operation in both freezing and high-heat industrial environments.
• Excellent Chemical & Corrosion Resistance: Made from durable Nylon Plastic, this washer resists degradation from chemicals, oils, and moisture, extending component life.
• Reliable Electrical Insulation: The non-conductive nylon material provides safe electrical isolation, preventing short circuits in electrical assemblies.
• Optimal Load Distribution: The flat design with a 0.406" ID and 0.812" OD effectively distributes pressure, protecting surfaces from damage under a 3/8" screw.
• Enhanced Durability & Wear Resistance: A Rockwell R115 hardness rating ensures the washer maintains its shape and function under vibration and repeated use.
• Environmental & Regulatory Compliance: Certified RoHS 3 and REACH compliant, meeting strict international standards for safety and restricted substances.
• Lightweight & Non-Marring: The plastic construction is lightweight and will not scratch or damage sensitive surfaces, ideal for finished products.

Professional Applications & Engineering Value

This Nylon Plastic Flat Washer is engineered to solve critical challenges in industrial assembly and electrical applications. Its inherent chemical resistance makes it perfect for use in environments exposed to solvents, fuels, and other corrosive agents, preventing fastener failure. The material's excellent electrical insulation properties are vital for preventing galvanic corrosion and ensuring safety in electrical enclosures and control panels. Furthermore, its wide temperature range from -40°F to 300°F provides reliability in outdoor equipment, automotive components, and machinery subjected to thermal cycling. The precise inch system dimensions (0.406" ID x 0.812" OD) ensure a perfect fit for 3/8" screw sizes, offering consistent load distribution and vibration dampening that protects costly components and reduces maintenance needs.

Specification Summary & Compliance

This flat washer is manufactured to precise dimensional standards with an Inside Diameter of 0.406" and Outside Diameter of 0.812", designed for a 3/8" screw size. It features a thickness range of 0.051-0.080" and a material hardness of Rockwell R115. 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 use in regulated markets.