S-91195A149 11.8 mm ID x 25.4 mm OD Washdown Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior sealing performance with bonded silicone rubber that prevents fluid and gas leakage under pressures up to 100 psi
• Exceptional temperature resistance from -100°F to 400°F, ensuring reliable operation in extreme thermal environments
• Corrosion-resistant 18-8 stainless steel construction provides long-lasting durability and reduces maintenance in harsh industrial settings
• Precision metric sizing (M12, 11.8mm ID, 25.4mm OD) ensures easy installation and secure fit with standard fasteners
• Optimized material hardness with Rockwell B80 metal and Durometer 50A seal for balanced compression and vibration resistance
• Full regulatory compliance with RoHS 3 and REACH standards, guaranteeing safety and environmental responsibility
• High-visibility red silicone seal allows for quick inspection and verification of proper placement in assemblies

Professional Applications & Engineering Value

This M12 metal bonded washer combines the structural integrity of 18-8 stainless steel with the flexibility of a silicone rubber seal to solve critical sealing challenges in demanding environments. The metal bonded design ensures the seal remains securely in place, preventing displacement under vibration or thermal cycling. Engineers specify this washer for applications such as pipeline flanges, hydraulic systems, and HVAC components where both corrosion resistance and reliable sealing are paramount. Its ability to maintain seal integrity across a wide temperature range (-100°F to 400°F) makes it ideal for industrial equipment exposed to thermal extremes, while the metric dimensions ensure compatibility with international standards.

Specification Summary & Compliance

This washer features precision dimensions: 11.8mm ID, 25.4mm OD, and 2-2.1mm thickness, designed for M12 screw sizes. Material specifications include 18-8 stainless steel with Rockwell B80 hardness and silicone rubber seal with Durometer 50A hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components.