S-90131A105 0.625" ID x 1.75" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior Sealing & Vibration Damping – SBR rubber construction with 70A hardness provides excellent flexibility and shock absorption for noise reduction and equipment protection.
• Enhanced Durability & Tear Resistance – Reinforced with polyester fiber filler to withstand heavy loads and repetitive stress without compromising integrity.
• Reliable High-Temperature Performance – Maintains structural stability and sealing properties in environments up to 170°F, ideal for industrial applications.
• Precision Fit for 5/8" Screws – 0.625" ID ensures secure, snug fastening, reducing the risk of loosening under dynamic conditions.
• Broad Compatibility & Easy Installation – Standard inch dimensions (1.75" OD, 0.110-0.140" thickness) suit diverse machinery and assembly setups.
• Eco-Safe & Regulatory Compliant – Meets RoHS 3 (2015/863/EU) standards, ensuring safe use in regulated industries.
• Cost-Effective Maintenance – Black SBR material resists wear, oil, and environmental factors, extending service life and reducing replacement frequency.

Professional Applications & Engineering Value

This SBR rubber flat washer is engineered to address common industrial challenges such as vibration-induced fastener loosening, fluid leakage, and metal-on-metal abrasion. The Durometer 70A hardness offers optimal compressibility, creating reliable seals in plumbing, automotive, and machinery assemblies where 5/8" screw fastening is critical. Its polyester fiber filler enhances tensile strength, preventing deformation under high pressure—making it suitable for pumps, compressors, and heavy-duty equipment. With a temperature resistance up to 170°F, it performs consistently in heated environments, reducing downtime and maintenance costs. The black, RoHS 3 compliant design ensures safety and durability, supporting efficient B2B procurement for MRO and OEM needs.

Specification Summary & Compliance

This flat washer adheres to inch measurement standards with an ID of 0.625", OD of 1.75", and thickness range of 0.110-0.140", ensuring precise fit for 5/8" screw applications. Manufactured from SBR rubber with a Durometer 70A hardness and polyester fiber reinforcement, it meets industry demands for dimensional accuracy and mechanical resilience. Compliance includes RoHS 3 (2015/863/EU), guaranteeing restricted substance-free materials for global supply chain integration.