S-93783A046 0.864" ID x 1.51" OD High-Pressure Bonded Sealing Washers For Screw Heads

Key Features & Benefits at a Glance

• Exceptional Sealing Performance: Buna-N rubber seal (Durometer 55A) ensures reliable, leak-proof sealing for fluids and gases, maintaining integrity under high-pressure conditions.
• Robust Material Construction: Zinc-plated steel body with Rockwell B71 hardness provides superior corrosion resistance and long-lasting durability in harsh industrial environments.
• Wide Temperature Tolerance: Operates effectively in extreme temperatures from -30°F to 225°F, making it suitable for diverse climatic and operational settings.
• High-Pressure Capability: Withstands up to 6000 PSI for fluids and 200 PSI for gases, ideal for demanding hydraulic and pneumatic applications.
• Precision Sizing: Designed with 0.864" ID and 1.51" OD for exact fit with 7/8" screws, ensuring easy installation and secure fastening.
• Regulatory Compliance: Meets RoHS 3 and REACH standards, guaranteeing safety and environmental responsibility for global supply chains.
• Versatile Application Use: Metal bonded design combines the strength of steel with the flexibility of rubber, offering optimal performance in vibration-prone and high-stress assemblies.

Professional Applications & Engineering Value

This heavy-duty metal bonded washer is engineered to address common industrial challenges such as fluid leakage, vibration loosening, and material degradation. The zinc-plated steel core provides excellent structural integrity and corrosion resistance, while the Buna-N rubber seal (Durometer 55A) ensures a tight, durable barrier against high-pressure fluids and gases. Its ability to perform in temperatures from -30°F to 225°F makes it ideal for industrial applications in automotive, machinery, and hydraulic systems, where reliable sealing and long-term performance are critical. By integrating a metal bonded design, this washer minimizes maintenance needs and enhances safety in demanding environments, offering a cost-effective solution for engineers and procurement specialists.

Specification Summary & Compliance

The washer features precise dimensions with an ID of 0.864", OD of 1.51", and thickness of 0.059-0.069", tailored for 7/8" screw sizes in the inch system of measurement. It adheres to industry standards for hardness (Rockwell B71) and seal properties (Durometer 55A), ensuring consistent quality and performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms its environmental and safety credentials, making it suitable for global industrial use without regulatory concerns.