S-91195A135 0.422" ID x 1.5" OD Washdown Bonded Sealing Washers

Key Features & Benefits at a Glance

• Exceptional temperature resilience with a wide operating range from -100°F to 400°F, ensuring reliable performance in extreme thermal environments.
• Superior sealing integrity provided by the bonded green silicone rubber seal, which prevents fluid and gas leaks up to 100 psi.
• Corrosion-resistant 18-8 Stainless Steel construction enhances longevity and maintains structural integrity in harsh industrial settings.
• Precise dimensional fit with a 0.422" ID and 1.5" OD, designed specifically for 7/16" screws to ensure secure and accurate assembly.
• Durable material properties including a Rockwell B80 hardness for the metal and Durometer 50A for the seal, offering excellent resistance to wear and compression set.
• Compliance with stringent regulations including RoHS 3 and REACH, making it safe for use in regulated industries and environmentally conscious applications.
• Versatile industrial applicability due to its robust design, suitable for automotive, machinery, and fluid systems requiring dependable sealing solutions.

Professional Applications & Engineering Value

This metal bonded washer combines the strength of 18-8 Stainless Steel with the flexibility of a silicone rubber seal to address common industrial challenges like thermal expansion, vibration loosening, and fluid leakage. The green silicone seal ensures a tight, long-lasting barrier against moisture, oils, and gases, even under fluctuating pressures and temperatures. Ideal for high-temperature environments such as engine compartments, HVAC systems, and chemical processing equipment, it prevents fastener corrosion and maintains seal integrity over time. By integrating a bonded design, it eliminates the need for separate gaskets, simplifying assembly and reducing the risk of installation errors in industrial washers applications.

Specification Summary & Compliance

The washer features precise dimensions with an ID of 0.422", OD of 1.5", and thickness ranging from 0.047" to 0.109", tailored for 7/16" screw size applications. It adheres to standard inch measurement systems and is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B80 and a silicone seal rated at Durometer 50A. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety standards for industrial use, ensuring no hazardous substances and supporting sustainable procurement practices.