S-93786A250 15.7 mm ID x 27.1 mm OD High-Pressure Bonded Sealing Washers For Screw Heads

Key Features & Benefits at a Glance

• Exceptional Sealing Performance - Buna-N rubber seal bonded to zinc-plated steel creates a reliable barrier against fluid and gas leaks in demanding applications
• High-Pressure Resistance - Withstands up to 12,500 PSI for fluids and 200 PSI for gases, ensuring reliable performance in hydraulic and pneumatic systems
• Wide Temperature Tolerance - Maintains sealing integrity across extreme temperatures from -30°F to 220°F for versatile industrial use
• Durable Construction - Rockwell C26 steel hardness combined with Durometer 85A rubber provides optimal balance of structural strength and sealing flexibility
• Corrosion-Resistant Finish - Zinc plating protects against rust and environmental degradation, extending service life in harsh conditions
• Precision Metric Sizing - 15.7mm ID, 27.1mm OD, and 1.1-1.4mm thickness ensure perfect fit for M16 screw applications with consistent performance
• Reduced Maintenance Requirements - Metal-bonded design prevents seal separation and maintains integrity through thermal cycling and pressure variations

Professional Applications & Engineering Value

This metal bonded washer combines the structural integrity of zinc-plated steel with the exceptional sealing properties of Buna-N rubber to solve critical engineering challenges in high-pressure environments. The innovative bonding technology creates a permanent seal that won't separate under extreme pressure cycling, making it ideal for hydraulic systems, pneumatic equipment, and industrial machinery where fluid containment is critical. The metric M16 sizing ensures compatibility with standard industrial fasteners while the wide temperature range from -30°F to 220°F allows deployment in both cryogenic and elevated temperature applications. Engineers specify this high-pressure washer to eliminate leakage points in pump connections, valve assemblies, and pressure vessels, significantly reducing downtime and maintenance costs while improving system reliability and safety compliance.

Specification Summary & Compliance

This precision metric washer features exact dimensional specifications with 15.7mm inner diameter, 27.1mm outer diameter, and controlled thickness of 1.1-1.4mm for consistent performance in M16 screw applications. The washer meets industry standards for metal bonded washers with Rockwell C26 hardness for the steel component and Durometer 85A for the Buna-N rubber seal. Manufacturing follows strict quality control protocols to ensure reliable performance under specified pressure ratings of 12,500 PSI for fluids and 200 PSI for gases. The product complies with RoHS and REACH environmental directives and is manufactured according to established industrial fastener specifications for consistent quality and performance in professional applications.