S-94709A318 0.33" ID x 0.625" OD Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior sealing performance with permanently bonded neoprene rubber that prevents fluid and gas leakage in demanding applications.
• Excellent corrosion resistance provided by the 18-8 stainless steel body, ensuring long-term reliability in harsh environments.
• Wide temperature tolerance from -40°F to 250°F, maintaining seal integrity and mechanical properties in extreme thermal conditions.
• Precise dimensional fit with 0.33" ID and 0.625" OD, designed specifically for 5/16" screws to ensure proper alignment and uniform load distribution.
• Durable elastomer seal rated at Durometer 65A, offering optimal flexibility and compression recovery for repeated use.
• Environmental compliance assurance with RoHS 3 and REACH conformity, meeting strict industrial safety and regulatory standards.
• Robust metal-rubber bond that resists separation under vibration and pressure, enhancing the washer's service life.

Professional Applications & Engineering Value

This metal bonded washer is engineered to solve critical sealing and corrosion challenges in industrial assemblies. The 18-8 stainless steel construction provides inherent resistance to rust and chemical exposure, while the black neoprene rubber seal (Durometer 65A) ensures a tight, lasting barrier against moisture, dust, and air ingress. Ideal for outdoor equipment, automotive components, and HVAC systems, it maintains performance across a broad temperature range from -40°F to 250°F. The permanent bonding of metal and rubber eliminates gasket slippage, making it a reliable choice for vibration-prone and high-pressure applications where consistent sealing is paramount.

Specification Summary & Compliance

This washer features an ID of 0.33", OD of 0.625", and thickness between 0.084-0.114", conforming to inch system standards for compatibility with 5/16" screws. It is manufactured with a neoprene rubber seal hardness of Durometer 65A and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements for industrial use.