S-93781A008 0.141" ID x 0.406" OD High-Pressure Bonded Sealing Washers For Nuts

Key Features & Benefits at a Glance

• Superior sealing performance with Buna-N rubber bonded to steel for reliable fluid containment up to 2000 psi
• Enhanced corrosion resistance through zinc-plated steel construction, extending service life in harsh environments
• Wide temperature compatibility from -30°F to 220°F, maintaining seal integrity across diverse operating conditions
• Optimized for No. 6 screws with precise 0.141" ID and 0.406" OD dimensions for perfect fit and uniform load distribution
• Durable material combination featuring Rockwell B71 steel hardness and Durometer 55A rubber for balanced strength and flexibility
• Regulatory compliance assurance with RoHS 3 and REACH conformity, meeting international environmental and safety standards
• Reliable pressure containment specifically engineered for high-pressure fluid applications in industrial systems

Professional Applications & Engineering Value

This metal bonded washer solves critical sealing challenges in industrial equipment where fluid leakage and environmental factors compromise system integrity. The zinc-plated steel base provides structural strength while resisting corrosion, while the permanently bonded Buna-N rubber seal creates an impermeable barrier against fluids and contaminants. Engineered for No. 6 screw applications, this washer maintains consistent compression across the 0.141" to 0.406" contact area, preventing loosening under vibration and thermal cycling. The black Buna-N formulation offers excellent resistance to oils, water, and industrial fluids, making these industrial washers ideal for hydraulic systems, pneumatic equipment, and outdoor machinery exposed to temperature extremes from -30°F to 220°F.

Specification Summary & Compliance

This heavy-duty washer features precise dimensional specifications including 0.141" inner diameter, 0.406" outer diameter, and 0.045-0.055" thickness range for No. 6 screw applications. Material properties include Rockwell B71 hardness for the zinc-plated steel component and Durometer 55A for the Buna-N rubber seal. The product fully complies with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety, ensuring environmental responsibility and regulatory acceptance in global markets.