S-91195A146 7.8 mm ID x 19.1 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 up to 100 psi, ensuring reliable operation in pressurized systems.
• Exceptional temperature resilience from -100°F to 400°F, maintaining seal integrity and mechanical function in extreme thermal environments.
• Corrosion-resistant 18-8 stainless steel body provides long-lasting durability and resistance to rust, ideal for harsh industrial settings.
• Optimized for M8 screw applications with precise 7.8 mm ID and 19.1 mm OD, ensuring easy installation and secure fit without slippage.
• Robust material hardness featuring Rockwell B80 for the metal and Durometer 50A for the seal, offering excellent compression recovery and wear resistance.
• Full regulatory compliance with RoHS 3 and REACH standards, guaranteeing safety and environmental responsibility for global supply chains.
• Vivid red silicone seal allows for quick visual inspection and identification, streamlining maintenance and quality checks.

Professional Applications & Engineering Value

This M8 metal bonded washer integrates an 18-8 stainless steel washer with a silicone rubber seal to address critical challenges in sealing and vibration management. The metal bonded design ensures the seal remains securely attached under dynamic loads, preventing failures in machinery subjected to thermal cycling and pressure fluctuations. Engineers value its ability to perform in extreme temperature settings, from cryogenic conditions to high-heat industrial processes, while the metric dimensions (7.8x19.1mm) provide compatibility with standard M8 fasteners in automotive, aerospace, and HVAC systems. By combining corrosion resistance with consistent sealing up to 100 psi, it reduces maintenance downtime and enhances system longevity in demanding applications.

Specification Summary & Compliance

The washer meets precise dimensional tolerances with an ID of 7.8 mm, OD of 19.1 mm, and thickness of 2-2.1 mm, designed for M8 screw size applications. It conforms to industry standards for material properties, including Rockwell B80 hardness for the stainless steel and Durometer 50A for the silicone seal. Compliance is verified with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring adherence to environmental and safety regulations for hazardous substances.