S-91195A127 0.422" ID x 1" OD Washdown Bonded Sealing Washers

Key Features & Benefits at a Glance

• Exceptional Temperature Resilience: Maintains sealing integrity from -100°F to 400°F, ideal for thermal cycling environments.
• Reliable Dual-Media Pressure Handling: Withstands up to 100 psi for both fluids and gases, ensuring leak-proof performance.
• Corrosion-Resistant 18-8 Stainless Steel Core: Provides long-lasting durability and resistance to rust in harsh industrial settings.
• Soft Silicone Rubber Seal (Durometer 50A): Offers superior compression and a tight seal without damaging mating surfaces.
• High Hardness Metal Body (Rockwell B80): Ensures dimensional stability and resistance to deformation under load.
• Precision Sizing (0.422" ID, 1" OD): Guarantees exact fit for 7/16" screws, simplifying installation and improving assembly accuracy.
• Global Compliance Assurance: Meets RoHS 3 and REACH standards, supporting use in regulated and international markets.

Professional Applications & Engineering Value

This metal bonded washer combines the strength of 18-8 stainless steel with the flexibility of a silicone rubber seal, engineered to solve common industrial challenges like fluid leakage, thermal expansion, and chemical exposure. The green silicone seal ensures visible quality control and effective sealing in high-temperature applications such as automotive engines, hydraulic systems, and HVAC units. By integrating a bonded design, it eliminates separate gasket handling, reducing assembly time and preventing misalignment. Ideal for pressure-rated environments, it maintains performance in both gaseous and liquid media, offering a reliable solution for OEMs and maintenance teams seeking durability and compliance.

Specification Summary & Compliance

This washer features precise dimensions with ID 0.422" and OD 1", tailored for 7/16" screw sizes. The 18-8 stainless steel construction ensures consistent performance, while the silicone seal with Durometer 50A hardness provides optimal compressibility. It adheres to industry standards for hardness (Rockwell B80) and operational limits, including temperature ranges from -100°F to 400°F and pressure up to 100 psi. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it meets stringent environmental and safety regulations for industrial use.