S-94240A113 0.434" ID x 0.81" OD Bonded Sealing Washers

Key Features & Benefits at a Glance

• Superior environmental sealing with bonded neoprene rubber that prevents moisture, dust, and contaminants from compromising assembly integrity.
• Excellent temperature resilience maintaining seal performance from -40°F to 250°F, ideal for applications exposed to thermal cycling.
• Lightweight corrosion resistance from the aluminum body, reducing overall weight while providing durable protection in harsh environments.
• Consistent compression and recovery due to the 65A durometer neoprene seal, ensuring reliable long-term sealing under varying pressures.
• Precise compatibility with 3/8" screws and a 0.434" ID for easy installation and secure fit in standard industrial assemblies.
• Regulatory compliance assurance meeting RoHS 3 and REACH standards, supporting sustainable and safe manufacturing practices.
• Robust metal-to-rubber bond that resists separation under stress, enhancing the washer's durability and service life.

Professional Applications & Engineering Value

This aluminum metal bonded washer integrates a neoprene rubber seal to address common industrial challenges like fluid ingress, vibration loosening, and thermal expansion. The metal bonded design ensures the seal remains intact under mechanical stress, while the aluminum construction offers a lightweight yet sturdy base that resists galvanic corrosion. Ideal for industrial applications in automotive, HVAC, and outdoor equipment, it provides a reliable barrier against environmental factors. The black neoprene seal (Durometer 65A) maintains flexibility across a wide temperature range from -40°F to 250°F, ensuring consistent performance in fluctuating conditions without cracking or degrading. This makes it a go-to solution for engineers seeking durable, compliant sealing components that enhance assembly longevity and reduce maintenance needs.

Specification Summary & Compliance

The washer features an ID of 0.434", OD of 0.81", and thickness range of 0.186-0.221", designed for use with 3/8" screw sizes in inch system measurements. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards. The neoprene seal material with a hardness of Durometer 65A provides consistent sealing performance, backed by the robust metal bonded construction for reliable operation in demanding settings.