S-94709A143 0.188" ID x 0.438" OD Bonded Sealing Washers
Bonded Sealing Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Seal Parameters
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Key Features & Benefits at a Glance
- Superior sealing performance with permanently bonded neoprene rubber that prevents leakage and ingress of contaminants
- Excellent corrosion resistance provided by 18-8 stainless steel construction, ideal for harsh industrial environments
- Wide temperature tolerance from -40°F to 250°F, maintaining seal integrity in extreme thermal conditions
- Optimized compression characteristics with 65A durometer neoprene for reliable sealing under varying pressure conditions
- Precise dimensional fit with 0.188" ID specifically engineered for No. 8 screw applications
- Durable metal-rubber bond that prevents separation during installation and throughout service life
- Enhanced vibration resistance through the combination of rigid stainless steel and flexible neoprene components
Professional Applications & Engineering Value
These metal bonded washers deliver critical sealing solutions where standard washers fail. The 18-8 stainless steel base provides structural integrity and corrosion resistance, while the permanently bonded neoprene rubber seal (Durometer 65A) creates an impermeable barrier against moisture, dust, and chemicals. Engineered for No. 8 screw applications, these washers solve common industrial challenges including fluid containment in hydraulic systems, environmental sealing in electrical enclosures, and vibration dampening in automotive assemblies. The black neoprene seal offers UV resistance and the temperature range from -40°F to 250°F ensures reliable performance in both freezing conditions and high-heat engine compartments, making them ideal for industrial equipment, automotive systems, and outdoor machinery applications.
Specification Summary & Compliance
Precision manufactured to exacting dimensional standards with 0.188" inner diameter and 0.438" outer diameter. The metal bonded construction combines 18-8 stainless steel with neoprene rubber seal, providing consistent performance across the specified temperature range of -40°F to 250°F. These washers meet industry standards for bonded seal applications and are compatible with inch-system fasteners. Manufactured in compliance with RoHS and REACH environmental regulations, ensuring safe use across various industrial sectors.
