S-90131A636 0.406" ID x 0.812" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior vibration damping with Durometer 70A hardness for reduced equipment wear and noise in demanding industrial environments
• Enhanced durability and tear resistance due to polyester fiber reinforcement, extending service life under mechanical stress
• Reliable sealing performance with precise 0.406" ID and 0.812" OD, preventing fluid and dust ingress in assembly applications
• High-temperature resilience up to 170°F, maintaining integrity in varied operational conditions
• Regulatory compliance assurance with RoHS 3 and REACH standards, ensuring safe use in global markets
• Optimal thickness tolerance (0.047-0.077") for consistent compression and fit with 3/8" screws
• Cost-effective maintenance through black SBR rubber's resistance to aging and environmental factors

Professional Applications & Engineering Value

This SBR rubber flat washer is engineered to address common industrial challenges like vibration-induced loosening and seal failure. The polyester fiber reinforcement significantly boosts tensile strength, preventing deformation under high load cycles in machinery, automotive, and HVAC systems. Its Durometer 70A hardness offers an ideal balance between flexibility and compression set resistance, ensuring long-term vibration damping and sealing for 3/8 inch fasteners. The black SBR rubber material, combined with a maximum temperature rating of 170°F, performs reliably in environments exposed to moderate heat, oils, and moisture, reducing downtime and replacement costs in industrial washers applications.

Specification Summary & Compliance

This flat washer adheres to inch system dimensions with an ID of 0.406", OD of 0.812", and thickness range of 0.047-0.077" for precise fit with 3/8" screw size. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free of hazardous substances and safe for industrial use. The specification ensures consistent performance in vibration damping and sealing roles, backed by material properties including Durometer 70A hardness and polyester fiber filler for enhanced structural integrity.