S-94709A128 0.434" ID x 0.81" OD Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior sealing performance with bonded neoprene rubber that prevents fluid and gas leakage in demanding applications
• Excellent corrosion resistance provided by 18-8 stainless steel construction for long-lasting durability in harsh environments
• Wide temperature tolerance from -40°F to 250°F, maintaining seal integrity across extreme thermal conditions
• Optimized seal hardness at Durometer 65A ensures proper compression and reliable sealing without deformation
• Precision dimensional fit with 0.434" ID and 0.81" OD designed specifically for 3/8" screw applications
• Regulatory compliance assurance with RoHS 3 and REACH standards for safe use in regulated industries
• Dual-material durability combining stainless steel strength with neoprene flexibility for vibration-resistant sealing

Professional Applications & Engineering Value

This metal bonded washer solves critical sealing challenges in industrial applications where standard washers fail. The 18-8 stainless steel base provides structural integrity while the black neoprene rubber seal creates an impermeable barrier against moisture, dust, and chemicals. Engineered for 3/8" screw applications in machinery, automotive, and outdoor equipment, this washer maintains compression under vibration and thermal cycling. The bonded construction ensures the seal remains securely attached during installation and service, eliminating the need for separate gaskets and reducing assembly time. Its temperature resistance from -40°F to 250°F makes it ideal for applications experiencing both freezing conditions and elevated operating temperatures.

Specification Summary & Compliance

This metal bonded washer features precise dimensions with 0.434" inner diameter, 0.81" outer diameter, and thickness ranging from 0.178" to 0.213". Manufactured to inch system standards for 3/8" screw size applications, it combines 18-8 stainless steel with neoprene rubber seal rated at Durometer 65A hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial use across multiple sectors.