S-90130A030 0.29" ID x 0.562" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Superior sealing performance with EPDM rubber material that effectively prevents fluid and air leaks in industrial assemblies
• Excellent vibration damping capability reduces noise and prevents fastener loosening in high-vibration environments
• Wide temperature resistance from -20°F to 212°F maintains flexibility and performance across various operating conditions
• Optimal hardness rating of Durometer 55A provides perfect balance between sealing pressure and compression recovery
• Precise dimensional fit with 0.29" ID specifically designed for 5/16" screws ensures proper installation and function
• Environmentally compliant construction meets RoHS 3 (2015/863/EU) standards for safe use in regulated industries
• Enhanced durability with EPDM's natural resistance to weathering, ozone, and aging for long service life

Professional Applications & Engineering Value

These EPDM rubber flat washers deliver critical engineering solutions for industrial applications requiring reliable sealing and vibration management. The black EPDM material excels in outdoor and harsh environments where resistance to weathering, ozone, and temperature extremes is essential. With a working range from -20°F to 212°F, these flat washers maintain their sealing integrity in both freezing conditions and high-temperature applications. The Durometer 55A hardness provides optimal compression for creating watertight and airtight seals around 5/16" screws while offering superior vibration damping to prevent fastener loosening in machinery, automotive, and electrical enclosures. The precise 0.29" ID and 0.562" OD dimensions ensure proper fit and consistent performance across multiple installations.

Specification Summary & Compliance

This EPDM rubber flat washer features precise inch system dimensions with 0.29" inner diameter, 0.562" outer diameter, and thickness ranging from 0.078" to 0.108". Manufactured to exacting standards for 5/16" screw applications, the washer maintains consistent performance with Durometer 55A hardness rating. The product is fully RoHS 3 (2015/863/EU) compliant and operates effectively within the specified temperature range of -20°F to 212°F, making it suitable for various industrial and commercial applications requiring environmental regulation adherence.