S-93781A011 0.194" ID x 0.469" OD High-Pressure Bonded Sealing Washers For Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Reliable fluid sealing up to 2000 psi with permanently bonded Buna-N rubber that prevents leakage and contamination
• Exceptional temperature performance maintaining seal integrity across extreme conditions from -30°F to 220°F
• Optimized mechanical strength with Rockwell B71 hardness steel core resisting deformation under high clamping loads
• Precision dimensional control ensuring consistent 0.194" ID and 0.469" OD for perfect No. 10 screw compatibility
• Enhanced vibration resistance through the metal-to-rubber bonded design that prevents loosening in dynamic applications
• Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial use without restriction

Professional Applications & Engineering Value

This metal bonded washer combines the structural integrity of zinc-plated steel with the sealing reliability of Buna-N rubber to solve critical engineering challenges in fluid containment systems. The permanent bond between metal and elastomer creates a high-pressure seal that withstands 2000 psi while maintaining performance across temperature extremes from -30°F to 220°F. Engineered for No. 10 screw applications, this washer prevents fluid leakage in hydraulic systems, pneumatic equipment, and industrial machinery where vibration and pressure fluctuations would compromise conventional washers. The black Buna-N seal provides excellent resistance to oils, water, and most industrial fluids, making it ideal for automotive, manufacturing, and heavy equipment applications requiring dependable sealing under dynamic load conditions.

Specification Summary & Compliance

Precision manufactured to exacting dimensional standards with 0.194" inner diameter, 0.469" outer diameter, and 0.045-0.055" thickness for perfect fit with No. 10 screws. The steel component meets Rockwell B71 hardness specifications while the bonded Buna-N rubber seal maintains Durometer 55A hardness for optimal sealing performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in global industrial markets.