S-90467A208 7.8 mm ID x 13.5 mm OD High-Pressure Bonded Sealing Washers For Screw Heads

Key Features & Benefits at a Glance

• Superior corrosion resistance with 304 Stainless Steel construction, ideal for harsh industrial environments.
• Reliable sealing under extreme conditions using Fluorocarbon Rubber, maintaining integrity from 0°F to 390°F.
• High-pressure performance supporting up to 3100 psi for fluids and 200 psi for gases, reducing leak risks.
• Precise M8 metric fit with 7.8mm ID and 13.5mm OD, ensuring easy installation and consistent alignment.
• Enhanced durability from Rockwell B90 hardness and 1.1-1.4mm thickness, resisting deformation under load.
• Optimal seal flexibility with Durometer 75A hardness, providing a tight, long-lasting seal without cracking.
• Versatile black seal color for easy identification and compatibility in various assembly applications.

Professional Applications & Engineering Value

This M8 metal bonded washer combines 304 Stainless Steel and Fluorocarbon Rubber seal to address common industrial challenges like fluid leaks, thermal expansion, and corrosion. The metal bonded design ensures the seal remains securely attached during vibration or pressure cycles, making it ideal for high-temperature applications up to 390°F and high-pressure systems handling fluids or gases. Engineers benefit from its metric dimensions (7.8mm ID, 13.5mm OD) for precise fits in machinery, automotive, and processing equipment, where consistent performance under stress is critical. By integrating robust materials, it minimizes maintenance needs and enhances safety in demanding environments.

Specification Summary & Compliance

This washer meets precise metric system dimensions with an ID of 7.8mm, OD of 13.5mm, and thickness of 1.1-1.4mm, designed for M8 screw sizes. It adheres to industry standards for material hardness (Rockwell B90 and Durometer 75A for the seal) and performance in temperature ranges from 0°F to 390°F. Compliant with common engineering specifications, it supports applications requiring resistance to high pressures (up to 3100 psi for fluids) and is manufactured to ensure reliability in industrial settings, though specific certifications like RoHS or ASME should be verified per order requirements.