S-99872A400 0.255" ID x 0.5" OD Plastic Washers

Key Features & Benefits at a Glance

• Enhanced durability and strength from glass-filled nylon construction, resisting wear in demanding industrial applications
• Excellent electrical insulation properties for safe use in electrical assemblies, preventing short circuits
• Superior corrosion resistance in harsh environments, eliminating rust and maintenance issues
• Reliable performance across wide temperature ranges from -20°F to 230°F, ensuring stability in varying operational conditions
• High hardness rating (Rockwell M96) provides consistent load distribution and reduces deformation under pressure
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and global market acceptance
• Precision fit for 1/4" screws with 0.255" ID and 0.5" OD, ensuring easy installation and secure fastening

Professional Applications & Engineering Value

This glass-filled nylon flat washer is engineered to address common industrial challenges such as galvanic corrosion, electrical conductivity risks, and component degradation in fluctuating temperatures. The glass-reinforced nylon material offers a unique combination of high tensile strength and lightweight properties, making it ideal for electrical insulation in control panels, machinery, and automotive systems. Its off-white color allows for easy identification in assemblies, while the temperature resistance from -20°F to 230°F ensures reliable performance in both indoor and outdoor settings. By providing a non-conductive, corrosion-resistant barrier, this washer minimizes maintenance downtime and extends the lifespan of fastened components in industrial washers and maintenance applications.

Specification Summary & Compliance

This flat washer features precise dimensions with an inner diameter of 0.255", outer diameter of 0.5", and thickness ranging from 0.057" to 0.067", designed to fit 1/4" screw sizes with accurate alignment. Manufactured to standard inch measurement system tolerances, it ensures consistent performance in assembly operations. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting stringent environmental and safety standards for hazardous substances. With a Rockwell M96 hardness, it adheres to quality benchmarks for plastic components in mechanical applications.