S-91195A136 0.485" ID x 1.5" OD Washdown Bonded Sealing Washers

Key Features & Benefits at a Glance

• Exceptional Temperature Resilience: Maintains sealing integrity across extreme environments from -100°F to 400°F, preventing failure in thermal cycling applications.
• Reliable Dual-Material Construction: Combines the corrosion resistance of 18-8 stainless steel with the flexible, durable seal of silicone rubber for superior joint protection.
• Optimized Pressure Handling: Withstands up to 100 psi for both fluids and gases, ensuring leak-proof performance in pressurized systems.
• Precise Fit for 1/2" Fasteners: Features a 0.485" ID and 1.5" OD for accurate alignment and uniform load distribution, reducing installation errors.
• Enhanced Durability & Chemical Resistance: The stainless steel body offers Rockwell B80 hardness for mechanical strength, while the 50A durometer silicone seal resists oils and chemicals.
• Global Compliance Assurance: Meets RoHS 3 and REACH standards, supporting use in regulated industries without environmental concerns.
• Vibration & Leakage Prevention: The bonded metal and silicone design absorbs shock and seals gaps, ideal for dynamic or high-vibration machinery.

Professional Applications & Engineering Value

This metal bonded washer is engineered to solve critical sealing challenges in demanding industrial settings. The 18-8 stainless steel base provides excellent corrosion resistance and structural integrity, while the bonded silicone rubber seal (color-coded green for easy identification) ensures a tight, resilient barrier against moisture, dust, and chemicals. It is ideal for applications in pipeline systems, HVAC units, and automotive assemblies, where fluctuations in temperature and pressure can compromise standard washers. By integrating a durometer 50A silicone seal, it accommodates minor surface irregularities and maintains compression under load, reducing maintenance costs and downtime. This combination addresses common pain points like fluid leakage and fastener loosening, offering long-term reliability in OEM and MRO operations.

Specification Summary & Compliance

The washer is manufactured to precise dimensional standards with an ID of 0.485", OD of 1.5", and thickness range of 0.047-0.109" for compatibility with 1/2" screw sizes in inch-based systems. It conforms to industry-accepted material hardness ratings (Rockwell B80 for metal, Durometer 50A for seal) and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety protocols for industrial components.