S-93781A033 0.51" ID x 1" OD High-Pressure Bonded Sealing Washers For Nuts
High-Pressure Bonded Sealing Washers For Nuts
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Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Seal Parameters
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Key Features & Benefits at a Glance
- Superior fluid sealing performance with Buna-N rubber bonded to steel, preventing leaks in high-pressure systems up to 5000 psi
- Enhanced corrosion resistance from zinc-plated steel construction, extending service life in harsh industrial environments
- Reliable temperature adaptability maintaining seal integrity across a wide range from -30°F to 220°F
- Optimized dimensional compatibility with 0.51" ID and 1" OD designed specifically for 1/2" screw applications
- Durable material combination featuring Rockwell B71 steel hardness and Durometer 55A rubber for long-term compression resistance
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
- Secure metal-to-rubber bonding preventing seal displacement under vibration and pressure cycling
Professional Applications & Engineering Value
Engineered for demanding industrial washers applications, this zinc-plated steel metal bonded washer solves critical sealing challenges in hydraulic systems, pneumatic equipment, and machinery assemblies. The permanent Buna-N rubber seal bonded to the steel washer creates an impermeable barrier against fluid and gas leakage, even under extreme pressure fluctuations. This heavy-duty washer design eliminates the need for separate gaskets while providing consistent performance in temperature-varying environments from sub-zero conditions to elevated heat exposure. The black seal configuration offers visual confirmation of proper installation, making it ideal for maintenance-critical applications where seal failure could lead to system downtime or safety hazards.
Specification Summary & Compliance
This 1/2" metal bonded washer features precise dimensional tolerances with 0.51" inner diameter and 1" outer diameter in inch system measurements. The assembly combines zinc-plated steel (Rockwell B71 hardness) with Buna-N rubber (Durometer 55A) bonded under high pressure manufacturing standards. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability for industrial procurement requirements.
