S-91619A500 0.118" ID x 0.375" OD High-Temperature Mica Washers

Key Features & Benefits at a Glance

• Exceptional thermal resistance up to 1050°F, ensuring reliable performance in high-heat environments without degradation.
• Superior electrical and thermal insulation from mica material, protecting sensitive components and reducing energy loss.
• Precision dimensional control with 0.001-0.003" thickness for consistent fit and optimal sealing in No. 4 screw assemblies.
• Wide compatibility with 0.375" OD and 0.118" ID, designed to fit standard No. 4 screws for easy integration.
• Environmental compliance with RoHS 3 and REACH standards, supporting sustainable and safe industrial operations.
• Durable mica construction offering long-lasting stability and resistance to extreme conditions, minimizing replacement needs.
• Non-conductive beige finish that aids in visual inspection and prevents electrical short circuits.

Professional Applications & Engineering Value

This mica flat washer is engineered to address critical challenges in high-temperature and electrical insulation applications. Made from natural mica material, it provides excellent dielectric strength and thermal stability, preventing heat transfer and electrical leakage in demanding setups like industrial heaters, furnaces, and electrical enclosures. The precise inch-based dimensions, including a 0.375" OD and 0.118" ID, ensure a secure fit for No. 4 screw size fasteners, reducing assembly errors and enhancing safety. Its ability to withstand temperatures up to 1050°F makes it ideal for aerospace, automotive, and energy sectors, where failure due to heat can lead to costly downtime. By incorporating this high-temperature washer, engineers achieve improved equipment longevity and compliance with industry standards.

Specification Summary & Compliance

This washer adheres to standard inch system measurements with an inner diameter of 0.118", outer diameter of 0.375", and thickness ranging from 0.001" to 0.003" for precise application fit. It is designed for use with No. 4 screw sizes and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. The product is rated for a maximum temperature of 1050°F and is not rated for hardness, focusing instead on insulation and high-temperature performance in industrial settings.