S-93412A423 0.355" ID x 0.812" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Exceptional high-temperature performance with a wide operating range from -10°F to 400°F, ensuring reliable sealing in extreme thermal environments.
• Superior chemical resistance provided by Viton® Fluoroelastomer material, protecting against harsh industrial fluids and solvents.
• Optimized sealing capability with Durometer 75A hardness, offering excellent compression set resistance and long-term leak prevention.
• Precise dimensional fit with 0.355" ID and 0.812" OD, designed for 3/8" screws to ensure proper alignment and uniform load distribution.
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting strict environmental and safety requirements for global industrial use.
• Enhanced durability in demanding applications due to the robust fluoroelastomer construction, reducing replacement frequency and maintenance costs.
• Broad industrial compatibility for use in automotive, aerospace, chemical processing, and oil & gas sectors where high-temperature and chemical resistance are critical.

Professional Applications & Engineering Value

This Viton® Fluoroelastomer Flat Washer is engineered to address critical challenges in high-stress industrial environments where temperature fluctuations and chemical exposure compromise standard washers. The fluoroelastomer rubber material excels in maintaining integrity under continuous thermal cycling from -10°F to 400°F, preventing brittleness or degradation that leads to seal failure. Its excellent chemical compatibility ensures resistance to oils, fuels, and aggressive solvents, making it ideal for sealing applications in engines, pumps, and fluid handling systems. The precise 3/8" screw size compatibility and consistent thickness (0.052-0.072") provide reliable gasketing and vibration dampening, reducing downtime in heavy-duty industrial machinery and enhancing operational safety in critical assemblies.

Specification Summary & Compliance

This washer features an inner diameter of 0.355", outer diameter of 0.812", and thickness range of 0.052-0.072", designed for 3/8" screw sizes in inch measurement systems. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and health standards. The material hardness is rated at Durometer 75A, providing optimal flexibility and compression resistance for consistent performance in specified temperature ranges.