S-90467A134 0.427" ID x 0.76" OD High-Pressure Bonded Sealing Washers For Screw Heads

Key Features & Benefits at a Glance

• Exceptional chemical and temperature resistance with a Fluorocarbon Rubber seal, maintaining integrity from 0°F to 390°F for reliable performance in harsh environments.
• Superior pressure handling supports up to 3200 psi for fluids and 200 psi for gases, preventing leaks in high-demand hydraulic and pneumatic systems.
• Durable 304 Stainless Steel construction with Rockwell B90 hardness offers excellent corrosion resistance and mechanical strength for long service life.
• Precision-engineered dimensions (0.427" ID x 0.76" OD) ensure a perfect fit for 7/16" screws, reducing installation errors and improving assembly efficiency.
• Optimized seal performance with Durometer 75A hardness provides effective sealing without compromising flexibility, ideal for vibration-prone applications.
• Versatile black seal design enhances aesthetic consistency and offers UV resistance, suitable for both indoor and outdoor industrial use.
• Reliable metal-bonded integration prevents seal separation under stress, ensuring consistent sealing in dynamic or high-pressure conditions.

Professional Applications & Engineering Value

This metal bonded washer combines 304 Stainless Steel robustness with a Fluorocarbon Rubber seal to address critical challenges in industries like chemical processing, automotive, and heavy machinery. The inch-system design and precise inner diameter of 0.427" ensure compatibility with standard 7/16" fasteners, minimizing assembly time and leakage risks. Engineered for extreme conditions, it excels in applications requiring resistance to high temperatures (up to 390°F) and pressures (3200 psi for fluids), such as in hydraulic systems or industrial pumps. The bonded structure eliminates common failure points, providing a long-lasting seal that reduces maintenance costs and downtime, making it a cost-effective solution for demanding B2B environments.

Specification Summary & Compliance

This washer adheres to inch measurement standards with precise dimensions: ID 0.427", OD 0.76", and thickness 0.045-0.055". It meets industry expectations for material integrity using 304 Stainless Steel (Rockwell B90 hardness) and Fluorocarbon Rubber (Durometer 75A hardness). The product is designed to comply with general industrial specifications for pressure and temperature ratings, and it aligns with common regulatory guidelines such as RoHS and REACH for environmental safety, ensuring reliability in global engineering applications.