S-94709A417 0.33" ID x 0.75" OD Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior environmental sealing with bonded neoprene rubber that prevents leakage and protects against moisture, dust, and contaminants
• Excellent temperature resilience for stable performance in extreme conditions from -40°F to 250°F
• Reliable vibration resistance due to the metal-to-rubber bond, reducing loosening in high-motion applications
• Corrosion-resistant construction using 18-8 stainless steel for long-lasting durability in harsh industrial environments
• Precise fit for 5/16" fasteners with 0.33" ID and 0.75" OD, ensuring easy installation and uniform pressure distribution
• Consistent sealing performance from the Durometer 65A neoprene, offering optimal compression and recovery
• Global compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This metal bonded washer integrates an 18-8 stainless steel base with a black neoprene rubber seal to address critical challenges in industrial sealing. The bonded design eliminates separate gaskets, simplifying assembly while providing a reliable barrier against environmental factors. Engineers value its ability to maintain seal integrity under vibration and thermal cycling, making it ideal for automotive, machinery, and outdoor equipment where temperature fluctuations from -40°F to 250°F are common. The neoprene material (Durometer 65A) ensures flexibility and compression set resistance, delivering long-term sealing efficiency in industrial washers for fluid systems, electrical enclosures, and structural joints.

Specification Summary & Compliance

This bonded washer features an ID of 0.33", OD of 0.75", and thickness range of 0.084-0.114", designed for 5/16" screw size with inch system measurements. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial components. The construction uses 18-8 stainless steel and neoprene rubber seal with a hardness of Durometer 65A, providing consistent performance without a rated hardness for the metal component.