S-90130A220 0.12" ID x 0.312" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Superior Sealing Performance: Made from EPDM rubber to provide excellent resistance to water, steam, and weathering, ensuring reliable seals in diverse environments.
• Exceptional Temperature Resilience: Operates reliably from -40°F to 212°F, maintaining flexibility and integrity in extreme thermal conditions without cracking or degrading.
• Optimized Vibration Dampening: With Durometer 60A hardness, these washers absorb shocks and reduce noise, prolonging the life of fastened assemblies.
• Precision Fit for No. 4 Screws: 0.12" ID and 0.312" OD ensure easy installation and secure placement, minimizing misalignment and improving assembly efficiency.
• Durable and Flexible Construction: The flat washer design with 0.019-0.043" thickness offers consistent compression recovery, resisting permanent set under load.
• Compliance with Global Standards: RoHS 3 and REACH compliant, providing assurance for use in regulated industries without hazardous substances.
• Chemical and Environmental Resistance: Black EPDM material withstands exposure to oils, acids, and UV radiation, ideal for outdoor and industrial settings.

Professional Applications & Engineering Value

This EPDM rubber flat washer is engineered to address common industrial challenges such as fluid leakage, component wear from vibration, and failure under temperature fluctuations. The Durometer 60A hardness ensures optimal compressibility, creating a tight seal for No. 4 screws in electrical enclosures, automotive assemblies, and plumbing systems. Its black EPDM composition offers inherent resistance to ozone and weathering, making it suitable for outdoor applications like HVAC units and marine equipment. By combining precise dimensions (0.12" ID x 0.312" OD) with a broad temperature range of -40°F to 212°F, it prevents gasket failure in high-heat or freezing conditions, reducing maintenance costs and enhancing operational reliability in demanding industrial washers applications.

Specification Summary & Compliance

This flat washer adheres to inch system measurements with an inner diameter of 0.12", outer diameter of 0.312", and thickness ranging from 0.019" to 0.043". It is manufactured to precise tolerances for consistent performance with No. 4 screw sizes. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from restricted substances and safe for industrial use. Additionally, the EPDM material meets standard industry specifications for flat washers, supporting applications requiring reliable sealing and vibration resistance.