S-90130A033 0.49" ID x 1.062" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Superior sealing performance with EPDM rubber construction that effectively prevents fluid and air leakage in demanding environments
• Excellent vibration dampening properties to reduce noise and prevent fastener loosening in machinery and equipment
• Wide temperature resistance from -20°F to 212°F (-29°C to 100°C) for reliable performance in both freezing and high-heat applications
• Optimal hardness rating of Durometer 55A provides ideal compression and recovery for long-term sealing effectiveness
• Precise dimensional compatibility with 1/2" screw size, 0.49" ID and 1.062" OD ensuring proper fit and function
• Environmental compliance assurance with RoHS 3 (2015/863/EU) compliance for use in regulated industrial settings
• Durable black EPDM material offering excellent weather, ozone, and UV resistance for extended service life

Professional Applications & Engineering Value

This EPDM rubber flat washer delivers exceptional engineering value through its specialized material properties and precise dimensional design. The ethylene propylene diene monomer rubber composition provides outstanding resistance to weathering, compression set, and aging, making it ideal for outdoor equipment, HVAC systems, and automotive applications where environmental factors degrade ordinary washers. The 55A durometer hardness ensures optimal compression without permanent deformation, maintaining consistent sealing performance under varying pressure conditions. These industrial washers effectively solve common engineering challenges including thermal expansion issues, vibration-induced fastener loosening, and fluid sealing requirements in plumbing and hydraulic systems. The precise 1/2" screw size compatibility and inch system measurements guarantee proper installation in standard American equipment and machinery.

Specification Summary & Compliance

This flat washer features precise dimensional specifications including 0.49" inner diameter, 1.062" outer diameter, and thickness ranging from 0.078" to 0.108" to accommodate standard installation requirements. Manufactured to inch system measurements with compatibility for 1/2" screw size applications. The product maintains RoHS 3 compliance (2015/863/EU) ensuring adherence to environmental regulations for hazardous substance restrictions. The EPDM rubber material meets industry standards for temperature performance within the specified range of -20°F to 212°F, providing reliable operation across diverse industrial environments.