S-90130A135 0.74" ID x 1.5" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Superior Sealing Performance: Made from EPDM rubber with a Durometer 55A hardness for excellent compression set resistance and reliable sealing against moisture, air, and dust.
• Exceptional Temperature Resistance: Withstands extreme temperatures from -20°F to 212°F, ensuring consistent performance in both freezing and high-heat industrial environments.
• Chemical & Environmental Durability: EPDM material offers outstanding resistance to weathering, ozone, and many chemicals, prolonging service life in harsh conditions.
• Precision Fit for 3/4" Screws: Features a 0.74" ID and 1.5" OD for a secure, snug fit, reducing the risk of misalignment and enhancing assembly efficiency.
• RoHS 3 Compliance: Meets RoHS 3 (2015/863/EU) standards, ensuring safe use in electronics and regulated industries without hazardous substances.
• Durable & Flexible Design: The flat washer shape and 0.110-0.140" thickness provide optimal load distribution and vibration dampening, protecting fastened components.
• Broad Industrial Application: Ideal for plumbing, HVAC, automotive, and outdoor equipment where temperature fluctuations and chemical exposure are common.

Professional Applications & Engineering Value

This EPDM rubber flat washer is engineered to address critical sealing challenges in demanding B2B and industrial settings. Its ethylene propylene diene monomer (EPDM) construction delivers exceptional resilience against temperature extremes, from -20°F to 212°F, preventing brittleness in cold and degradation in heat. The Durometer 55A hardness ensures a perfect balance of flexibility and compression, creating a reliable seal that mitigates leaks in plumbing, HVAC systems, and automotive assemblies. By withstanding ozone, water, and many chemicals, it reduces maintenance needs and downtime in industrial applications. The precise 0.74" ID and 1.5" OD dimensions, tailored for 3/4" screw size, facilitate quick installation and enhance joint integrity, making it a go-to solution for engineers seeking durability and compliance in inch system fastening.

Specification Summary & Compliance

This flat washer adheres to precise dimensional standards with an inner diameter of 0.74", outer diameter of 1.5", and thickness ranging from 0.110" to 0.140", ensuring consistent fit and performance. Manufactured from EPDM rubber in black color with a Durometer 55A hardness, it is designed for use with 3/4" screws in the inch measurement system. The product is fully RoHS 3 (2015/863/EU) compliant, confirming the absence of restricted hazardous substances, and is suitable for applications requiring resilience across a broad temperature range of -20°F to 212°F.