S-90131A641 0.531" ID x 1.25" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior Sealing Performance: Made from SBR rubber with Durometer 70A hardness, providing excellent compression and a reliable seal against moisture, dust, and air in industrial environments.
• Enhanced Durability & Tear Resistance: Reinforced with polyester fiber filler to resist deformation and extend service life under repetitive loads and vibrations.
• Wide Temperature Tolerance: Withstands temperatures up to 170°F, making it suitable for applications involving moderate heat without compromising material integrity.
• Precise Fit for 1/2" Screws: Features a 0.531" ID and 1.25" OD for accurate alignment and secure fastening in inch-system assemblies, reducing installation errors.
• Regulatory Compliance & Safety: RoHS 3 and REACH compliant, ensuring the washer is free from hazardous substances and safe for use in regulated industries and global markets.
• Versatile Industrial Application: Ideal as a flat sealing washer for machinery, automotive, and plumbing systems, offering vibration dampening and gap-filling properties.
• Consistent Thickness for Even Pressure Distribution: Thickness range of 0.047-0.077" ensures uniform load spreading, preventing surface damage and loosening over time.

Professional Applications & Engineering Value

This SBR rubber flat washer is engineered to address common challenges in industrial sealing and vibration management. The Durometer 70A hardness provides optimal flexibility for creating tight seals against fluids and particulates, while the polyester fiber reinforcement enhances structural integrity, preventing blow-outs under high pressure. Its black SBR material offers excellent resistance to abrasion and environmental factors, making it a reliable choice for automotive gaskets, machinery mounts, and plumbing fixtures. By combining a precise 1/2" screw size compatibility with a 1.25" OD, it ensures easy installation and consistent performance in inch-system applications, reducing downtime and maintenance costs in demanding settings.

Specification Summary & Compliance

This washer adheres to standard inch system measurements with an ID of 0.531", OD of 1.25", and thickness between 0.047-0.077". It is manufactured from SBR rubber with a Durometer 70A hardness and polyester fiber filler for consistent quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it meets strict environmental and safety standards for industrial use.