S-90131A621 1.312" ID x 1.91" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior vibration damping with Durometer 70A hardness rubber for reduced equipment wear and noise
• Enhanced durability and load distribution from polyester fiber filler reinforcement
• Reliable chemical resistance for protection against industrial fluids and harsh environments
• Precise dimensional fit with 1.312" ID and 1.91" OD for secure 1 1/4" screw applications
• Stable thermal performance maintaining sealing integrity up to 170°F operating temperatures
• Compliance-ready construction meeting RoHS 3 and REACH environmental standards
• Optimal compression recovery ensuring long-term sealing effectiveness in industrial settings

Professional Applications & Engineering Value

This SBR rubber flat washer delivers critical engineering solutions for industrial equipment requiring reliable vibration damping and chemical-resistant sealing. The Durometer 70A hardness provides ideal flexibility for compression set resistance, while the polyester fiber filler reinforces structural integrity under repeated load cycles. Engineered for 1 1/4" screw size applications, it effectively prevents loosening in machinery, piping systems, and electrical enclosures exposed to oils, moisture, and temperature fluctuations up to 170°F. The precise 1.312" ID x 1.91" OD dimensions ensure uniform pressure distribution, making it indispensable for maintenance and OEM assemblies where flat washers must withstand dynamic industrial stresses.

Specification Summary & Compliance

Manufactured to inch system standards with critical dimensions: 1.312" Inner Diameter, 1.91" Outer Diameter, and 0.105-0.145" Thickness range. Material specifications include SBR rubber with polyester fiber filler and Durometer 70A hardness. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial components.