S-93412A411 0.195" ID x 0.438" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Exceptional high-temperature performance with a working range from -10°F to 400°F, ensuring reliable sealing and mechanical integrity in extreme thermal environments.
• Superior chemical resistance provided by Viton® Fluoroelastomer material, protecting against harsh fluids, oils, and solvents to extend service life.
• Optimized mechanical durability with a Durometer 75A hardness, offering a balance of flexibility for effective sealing and rigidity for load distribution.
• Precision dimensional fit with a 0.195" ID and 0.438" OD, designed specifically for No. 12 screws to prevent loosening and ensure secure fastening.
• Consistent thickness control between 0.052" to 0.072", providing uniform pressure distribution and reliable sealing surfaces in assemblies.
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safety and environmental responsibility for global industrial applications.
• Versatile black color and flat design for easy identification and compatibility with various industrial equipment and sealing requirements.

Professional Applications & Engineering Value

This Viton® Fluoroelastomer flat washer is engineered to solve critical challenges in demanding industrial settings where standard washers fail. Its fluoroelastomer rubber composition delivers outstanding resistance to aggressive chemicals, fuels, and oils, preventing degradation and maintaining seal integrity in automotive, aerospace, and chemical processing equipment. The high-temperature resistance up to 400°F ensures stable performance in engine compartments, hydraulic systems, and industrial ovens, while the precise 0.195" ID and 0.438" OD dimensions for No. 12 screws guarantee a secure fit, reducing vibration-induced failures. By combining excellent compression set resistance with a Durometer 75A hardness, it provides lasting sealing force and distributes loads effectively, minimizing leakage and assembly wear in critical sealing applications.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.195", outer diameter of 0.438", and thickness range of 0.052" to 0.072", designed for use with No. 12 screw sizes in inch measurement systems. It is manufactured from Viton® Fluoroelastomer rubber with a Durometer 75A hardness and operates within a temperature range of -10°F to 400°F. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to strict environmental and safety standards for industrial components.