S-94709A416 0.275" ID x 0.75" OD Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior environmental sealing with permanently bonded neoprene rubber that prevents leakage and contamination in demanding conditions
• Excellent corrosion resistance provided by 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Wide temperature tolerance from -40°F to 250°F, maintaining seal integrity across extreme thermal cycles and outdoor applications
• Enhanced vibration resistance through the metal-to-rubber bond design, reducing loosening and maintaining consistent clamping force
• Precision dimensional fit with 0.75" OD and 0.275" ID specifically engineered for 1/4" fasteners, ensuring proper installation and load distribution
• Compliance assurance with RoHS 3 and REACH regulations, meeting international environmental and safety standards for industrial components
• Durable neoprene seal rated at Durometer 65A providing optimal flexibility and compression recovery for long-lasting performance

Professional Applications & Engineering Value

This metal bonded washer solves critical engineering challenges where standard flat washers fail. The 18-8 stainless steel base provides structural integrity while the chemically bonded neoprene rubber seal creates an impermeable barrier against moisture, dust, and chemicals. This combination addresses common industrial pain points including vibration-induced loosening in machinery, environmental sealing in outdoor equipment, and thermal cycling in HVAC systems. The black neoprene seal offers excellent UV and ozone resistance, making these industrial washers ideal for automotive assemblies, electrical enclosures, and processing equipment where reliable sealing and corrosion resistance are paramount.

Specification Summary & Compliance

This metal bonded washer features precise inch system dimensions with 0.275" ID, 0.75" OD, and thickness range of 0.084-0.114" specifically designed for 1/4" fasteners. The assembly combines 18-8 stainless steel with Durometer 65A neoprene rubber seal material, engineered to maintain performance across the specified temperature range of -40°F to 250°F. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to international environmental and safety standards for industrial components.