S-91195A143 4.9 mm ID x 25.4 mm OD Washdown Bonded Sealing Washers

Key Features & Benefits at a Glance

• Exceptional Sealing Performance: The bonded red silicone rubber seal provides a reliable barrier against fluids and gases, preventing leaks in demanding environments.
• Wide Temperature Resilience: Withstands extreme conditions from -100°F to 400°F, ensuring consistent performance in both high-heat and cryogenic applications.
• Robust Pressure Handling: Capable of sealing against 100 psi for both fluids and gases, offering dependable pressure resistance for industrial systems.
• Corrosion-Resistant Construction: Made from 18-8 Stainless Steel with a Rockwell B80 hardness, providing excellent durability and resistance to rust and corrosion.
• Optimized for M5 Fasteners: Precision-engineered with a 4.9mm ID and 25.4mm OD for a perfect fit with M5 screws, ensuring easy installation and secure fastening.
• Flexible Yet Durable Seal: The silicone seal with a Durometer 50A hardness offers optimal flexibility for conforming to surfaces while maintaining seal integrity under compression.
• Compliant with Global Standards: Meets RoHS 3 and REACH regulations, ensuring safety and environmental compliance for international industrial use.

Professional Applications & Engineering Value

This M5 Metal Bonded Washer is engineered to solve critical sealing challenges in harsh industrial environments. The 18-8 Stainless Steel body provides structural integrity and corrosion resistance, while the permanently bonded red silicone rubber seal ensures a leak-proof barrier that remains effective across a broad temperature range from -100°F to 400°F. Ideal for applications in automotive, aerospace, and chemical processing industries, this metric washer prevents fluid and gas leakage under pressures up to 100 psi, reducing maintenance downtime and enhancing system reliability. Its precise dimensions (4.9mm ID, 25.4mm OD) guarantee compatibility with M5 screw assemblies, making it a vital component for engineers seeking durable, high-performance sealing washers that withstand extreme operational conditions.

Specification Summary & Compliance

This washer features precise metric dimensions with an inner diameter of 4.9mm and outer diameter of 25.4mm, designed for M5 screw applications. It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B80 and includes a silicone rubber seal rated at Durometer 50A. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use worldwide.