S-93786A502 2.2 mm ID x 5 mm OD High-Pressure Bonded Sealing Washers For Screw Heads

Key Features & Benefits at a Glance

• Exceptional sealing reliability with Buna-N rubber bonded to zinc-plated steel, preventing fluid and gas leaks in demanding environments
• High-pressure resistance up to 6600 psi for fluids and 200 psi for gases, ensuring secure performance in hydraulic and pneumatic systems
• Wide temperature tolerance from -10°F to 240°F, maintaining seal integrity and material stability across varying operational conditions
• Durable construction featuring Rockwell B105 steel hardness and Durometer 60A seal hardness for long-lasting wear and compression resistance
• Precision metric sizing with 2.2mm ID, 5mm OD, and 0.9-1.1mm thickness for exact fit with M2.5 screws, reducing installation errors
• Corrosion-resistant zinc plating on steel, providing enhanced protection against rust and extending service life in harsh industrial settings
• Versatile black Buna-N seal offering excellent compatibility with oils and chemicals, ideal for automotive, machinery, and fluid handling applications

Professional Applications & Engineering Value

This M2.5 metric metal bonded washer combines zinc-plated steel with a Buna-N rubber seal to address critical engineering challenges in high-stress environments. The metal bonded design ensures a permanent, leak-proof barrier, effectively solving common issues like seal displacement under vibration or thermal cycling. Its ability to withstand extreme pressures up to 6600 psi for fluids and broad temperature ranges from -10°F to 240°F makes it indispensable in industrial applications such as hydraulic systems, pneumatic controls, and automotive assemblies. The precise metric dimensions (2.2mm ID, 5mm OD) guarantee easy integration with M2.5 fasteners, reducing assembly time and enhancing reliability in precision equipment. By leveraging the Rockwell B105 hardness of the steel and Durometer 60A seal flexibility, this washer delivers consistent performance, minimizing downtime and maintenance costs in heavy-duty operations.

Specification Summary & Compliance

This washer adheres to metric system standards with precise dimensions: 2.2mm ID, 5mm OD, and 0.9-1.1mm thickness for M2.5 screw compatibility. It meets material specifications including zinc-plated steel with Rockwell B105 hardness and Buna-N rubber seal with Durometer 60A hardness. The product is designed to comply with industry norms for pressure and temperature ratings, supporting applications up to 6600 psi for fluids and 200 psi for gases, within a range of -10°F to 240°F. It aligns with general RoHS and REACH directives for environmental safety, ensuring no hazardous substances are used in its construction.