S-91367A943 0.15" ID x 0.438" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Exceptional temperature resilience for reliable performance in environments ranging from -60°F to 400°F, preventing material degradation under thermal stress.
• Superior sealing capabilities with fluorosilicone rubber construction that resists fuels, oils, and chemicals, ensuring leak-proof connections.
• Effective vibration damping due to Durometer 60A hardness, reducing loosening and wear in high-stress assemblies.
• Precise dimensional fit with 0.15" ID and 0.438" OD designed specifically for No. 8 screws, enabling easy installation and uniform pressure distribution.
• Consistent thickness control (0.052-0.072") for reliable gasketing and load distribution, minimizing the risk of fastener failure.
• High visibility and identification with blue color coding, simplifying inventory management and assembly processes.
• Compliance with stringent regulations including RoHS 3 and REACH, ensuring safety and environmental responsibility in global supply chains.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these fluorosilicone rubber flat washers excel in applications where extreme temperatures and harsh chemicals are prevalent. The fluorosilicone material offers excellent resistance to oxidation, ozone, and fluids, making it ideal for automotive, aerospace, and chemical processing equipment. With a temperature range of -60°F to 400°F, they maintain elasticity and sealing integrity where standard rubber washers fail. The precise 0.15" ID and 0.438" OD ensure a snug fit on No. 8 screw sizes, providing consistent compression and preventing leaks in gasketing systems. This combination of material properties and dimensional accuracy solves common issues like thermal expansion mismatches and fluid ingress, extending the lifespan of assembled components.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.15", outer diameter of 0.438", and thickness range of 0.052-0.072" with Durometer 60A hardness, manufactured to inch system standards. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements for industrial use.