S-90295A241 0.211" ID x 1.25" OD ASME B18.22.1 Plastic Washers

Key Features & Benefits at a Glance

• Superior corrosion and chemical resistance thanks to high-quality nylon plastic construction, ensuring long-term reliability in harsh environments.
• Excellent electrical insulation properties for safe use in electrical assemblies, preventing short circuits and enhancing operational safety.
• Wide operating temperature range from -40°F to 300°F maintains performance and dimensional stability under extreme thermal conditions.
• High hardness (Rockwell R115) provides excellent load distribution and resistance to deformation under pressure.
• Precision dimensions (0.211" ID, 1.25" OD, 0.048-0.062" thickness) ensure a perfect fit for No. 10 screws, reducing installation time and improving assembly accuracy.
• Compliance with ASME B18.22.1 standard guarantees consistent quality, interchangeability, and reliability in industrial applications.
• RoHS 3 and REACH compliance ensures environmental safety and meets global regulatory requirements for hazardous substances.

Professional Applications & Engineering Value

This Nylon Plastic Flat Washer is engineered to address critical challenges in industrial and electrical applications. Its nylon material offers inherent corrosion resistance, making it ideal for environments exposed to moisture, chemicals, and salts, unlike metal washers that may rust. The green color provides easy identification in complex assemblies. With a temperature range of -40°F to 300°F, it performs reliably in both freezing and high-heat conditions, preventing brittleness or melting. The precise 0.211" ID and 1.25" OD ensure secure fastening for No. 10 screws, reducing vibration loosening and distributing load evenly to protect surfaces. Commonly used in electrical insulation, automotive, and machinery assemblies, this washer enhances durability and safety while meeting ASME B18.22.1 standards for consistent performance.

Specification Summary & Compliance

This flat washer features precise dimensions including an ID of 0.211", OD of 1.25", and thickness of 0.048-0.062", designed for No. 10 screw sizes in the inch system. It conforms to the ASME B18.22.1 specification for flat washers, ensuring dimensional accuracy and mechanical reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for various industrial and consumer applications.