S-93785A960 0.406" ID x 0.812" OD ASME B18.22.1 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal stability for reliable performance in environments ranging from -50°F to 550°F, preventing deformation or failure under extreme temperature cycling.
• Superior chemical resistance inherent to PEEK plastic, ensuring long-term integrity when exposed to harsh industrial chemicals, solvents, and corrosive agents.
• Precision dimensional accuracy with 0.406" ID and 0.812" OD, manufactured to ASME B18.22.1 standards for consistent fit and optimal load distribution on 3/8" screws.
• RoHS 3 compliance guarantees environmental safety and regulatory adherence, making it suitable for global supply chains and eco-conscious manufacturing.
• Lightweight and non-corrosive PEEK construction reduces overall assembly weight and eliminates galvanic corrosion risks when paired with dissimilar metals.
• Excellent durability and fatigue resistance for demanding applications, maintaining structural integrity under continuous mechanical stress and vibration.
• Broad industrial compatibility due to inch system measurements and flat washer design, facilitating easy integration into existing North American equipment and assemblies.

Professional Applications & Engineering Value

This PEEK plastic flat washer delivers critical engineering solutions in high-temperature industrial applications where metal washers would fail. Its PEEK material provides inherent chemical resistance against aggressive fluids, making it ideal for chemical processing, oil and gas, and aerospace sectors. The ASME B18.22.1 compliance ensures precise flat washer geometry with consistent 0.406" ID and 0.812" OD dimensions, preventing bolt loosening and ensuring even clamping force distribution for 3/8" screw assemblies. With an operational range from -50°F to 550°F, it maintains mechanical properties in thermal cycling environments, reducing maintenance frequency and enhancing equipment reliability in demanding industrial applications.

Specification Summary & Compliance

This washer features precise inch system dimensions: 0.406" ID, 0.812" OD, and thickness between 0.056"-0.071". It is manufactured to ASME B18.22.1 standard for dimensional accuracy and performance. The product is fully RoHS 3 (2015/863/EU) compliant, meeting environmental regulations. Designed for use with 3/8" screws, it operates reliably across a temperature range of -50°F to 550°F without compromising its structural integrity or chemical resistance properties.