S-5916K58 1.25" ID x 3" OD Chemical-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior Sealing Performance: Raised grid design creates enhanced compression and sealing capabilities for reliable leak prevention in industrial applications.
• Chemical & Temperature Resistance: Made from Buna-N rubber withstanding temperatures up to 200°F and offering excellent resistance to oils, fuels, and chemicals.
• Optimized Durability & Flexibility: Durometer 63A hardness provides the perfect balance between firm sealing pressure and material flexibility for long service life.
• Precision Fit for 1 1/4" Screws: 1.25" ID and 3" OD dimensions ensure accurate installation and maximum surface coverage with standard fasteners.
• Enhanced Grip & Vibration Resistance: The raised and indented grid pattern increases surface friction, helping to prevent loosening under dynamic loads and vibration.
• Regulatory Compliance Assurance: Fully compliant with RoHS 3 and REACH regulations, ensuring safety and environmental standards are met for global supply chains.
• Dimensional Consistency: Manufactured to precise inch system specifications with consistent thickness (0.281-0.343") for reliable performance in repetitive assembly.

Professional Applications & Engineering Value

This Buna-N rubber raised grid washer delivers critical engineering value in demanding environments where standard flat washers fail. The unique raised grid design acts as a dynamic gasket, compensating for surface irregularities and providing superior sealing under bolt compression. Its chemical-resistant properties make it ideal for automotive, machinery, and fluid handling systems exposed to oils and solvents. The Durometer 63A hardness ensures it maintains seal integrity without over-compressing, solving common issues of extrusion and premature failure. For applications requiring vibration dampening and thermal stability up to 200°F, this washer provides a durable, compliant sealing solution that extends equipment lifespan and reduces maintenance cycles in industrial settings.

Specification Summary & Compliance

This washer features precise dimensional specifications: 1.25" ID, 3" OD, and thickness ranging from 0.281" to 0.343" with grid widths of 0.219" (raised) and 0.281" (indented). Designed for 1 1/4" screw sizes in the inch measurement system, it maintains consistent manufacturing tolerances. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets current environmental and safety standards for industrial components.