S-91195A145 5.9 mm ID x 25.4 mm OD Washdown Bonded Sealing Washers

Key Features & Benefits at a Glance

• Exceptional Sealing Performance: The permanently bonded red silicone rubber seal creates a reliable, leak-proof barrier against fluids and gases, ensuring system integrity.
• Superior Temperature Resilience: Withstands extreme conditions from -100°F to 400°F, making it ideal for applications involving thermal cycling or harsh environments.
• Robust Pressure Containment: Capable of handling pressures up to 100 psi for both fluids and gases, providing dependable performance in pressurized systems.
• High-Strength & Corrosion-Resistant Core: The 18-8 Stainless Steel body offers excellent corrosion resistance and a Rockwell B80 hardness for long-term durability and mechanical strength.
• Optimized for M6 Fastener Systems: Precision Metric dimensions (25.4mm OD, 5.9mm ID) ensure a perfect fit and uniform clamping force for M6 screws.
• Durable & Flexible Seal: The Durometer 50A silicone seal maintains flexibility and compression set resistance, ensuring a long service life.
• Compliant for Global Use: Adheres to RoHS 3 and REACH regulations, guaranteeing they are free of hazardous substances for safe use in various markets.

Professional Applications & Engineering Value

This M6 metal bonded washer is engineered to solve critical sealing challenges in demanding industrial applications. The combination of a robust 18-8 stainless steel body and a bonded silicone rubber seal provides a dual-function solution: the metal washer distributes load and prevents loosening, while the integrated seal effectively blocks contaminants, moisture, and pressure leaks. This design is invaluable in pneumatic systems, fluid handling equipment, automotive assemblies, and outdoor machinery, where exposure to extreme temperatures, chemicals, and vibration is common. By integrating the seal directly onto the washer, it simplifies assembly, reduces part count, and enhances reliability, delivering significant engineering value by preventing downtime and maintenance costs associated with seal failure.

Specification Summary & Compliance

This washer is manufactured to precise metric specifications with an Inner Diameter of 5.9mm and Outer Diameter of 25.4mm, designed for M6 screw size. The material hardness is specified as Rockwell B80 for the stainless steel and Durometer 50A for the silicone seal. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent international standards for environmental safety and hazardous substance restrictions.