S-94709A418 0.434" ID x 0.75" OD Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior sealing performance with bonded neoprene rubber that prevents fluid and gas leakage in demanding environments
• Exceptional temperature resistance from -40°F to 250°F, maintaining seal integrity across extreme thermal cycles
• Corrosion-resistant 18-8 stainless steel construction ensures long-term durability and reliability in harsh industrial settings
• Optimized compression characteristics with Durometer 65A seal hardness providing consistent sealing force without over-compression
• Precise dimensional fit with 0.434" ID and 0.75" OD engineered for perfect compatibility with 3/8" fasteners
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global market acceptance and environmental safety
• Dual-material bonding technology combines metal strength with rubber flexibility for vibration resistance and lasting performance

Professional Applications & Engineering Value

These metal bonded washers with 18-8 stainless steel and neoprene rubber seal address critical sealing challenges in industrial applications where environmental factors compromise standard washers. The black neoprene seal provides excellent resistance to oils, chemicals, and weathering while maintaining flexibility across the broad temperature range from -40°F to 250°F. Engineered for 3/8" screw size applications, these washers prevent leakage in hydraulic systems, pneumatic equipment, and outdoor machinery where thermal cycling and corrosive elements would degrade ordinary seals. The permanent metal-to-rubber bonding ensures the seal remains intact during vibration and pressure fluctuations, eliminating the need for separate gaskets and simplifying assembly processes in automotive, marine, and industrial equipment manufacturing.

Specification Summary & Compliance

This metal bonded washer features precise inch dimensions with 0.434" inner diameter and 0.75" outer diameter, specifically designed for 3/8" screw size applications. The construction combines 18-8 stainless steel with a neoprene rubber seal rated at Durometer 65A hardness, providing optimal compression and recovery characteristics. The product maintains dimensional stability with thickness ranging from 0.084" to 0.114" for consistent performance. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in global markets. The temperature performance range of -40°F to 250°F validates suitability for both low-temperature and moderate high-temperature industrial environments.