S-93412A442 0.15" ID x 0.438" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Exceptional high-temperature resilience with a wide operating range from -10°F to 400°F, ensuring reliable performance in extreme thermal environments.
• Superior chemical and fluid resistance due to Viton® Fluoroelastomer material, protecting against degradation from oils, fuels, and many industrial chemicals.
• Consistent sealing and load distribution with a Durometer 75A hardness, providing an optimal balance of flexibility and durability for No. 8 screws.
• Precise dimensional fit with a 0.15" ID and 0.438" OD, ensuring easy installation and a secure fit on standard No. 8 fasteners.
• Enhanced application safety and compliance by meeting RoHS 3 and REACH regulations, making them suitable for use in regulated industries.
• Durable, long-lasting performance in harsh conditions, reducing the frequency of maintenance and replacement cycles.

Professional Applications & Engineering Value

This Viton® flat washer is engineered to solve critical challenges in demanding industrial environments. Its fluoroelastomer rubber composition provides outstanding resistance to high temperatures, chemicals, and compression set, making it an ideal choice for automotive, aerospace, chemical processing, and oil & gas applications. The washer maintains its integrity and sealing capabilities under continuous exposure to temperatures up to 400°F, preventing leaks and fastener loosening in high-temperature assemblies. The specific dimensions (0.15" ID x 0.438" OD) and 0.052-0.072" thickness ensure a perfect match for No. 8 screws, providing reliable vibration damping and surface protection. This makes it a vital component for engineers seeking durable, compliant sealing solutions that extend equipment life and reduce downtime.

Specification Summary & Compliance

This flat washer conforms to inch system measurements with an Inside Diameter of 0.15", Outside Diameter of 0.438", and a Thickness range of 0.052-0.072", designed specifically for No. 8 screw size. The material is Viton® Fluoroelastomer Rubber with a Durometer 75A hardness and black color. It is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant (as of 01/17/2023, 233 SVHC), ensuring adherence to strict environmental and safety standards for industrial components.