S-95630A218 0.37" ID x 1.09" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional heat resistance up to 500°F, ensuring reliable performance in high-temperature industrial environments without degradation.
• Superior chemical resistance due to PTFE material, protecting against corrosion and extending service life in harsh chemical applications.
• Excellent sealing and insulation properties, providing effective barriers against leaks, electricity, and contaminants for enhanced safety.
• Consistent dimensional accuracy with precise ID (0.37") and OD (1.09") for easy installation and secure fit on 5/16" screws.
• Durable Durometer 55D hardness, offering optimal resilience and load distribution to prevent loosening under vibration or stress.
• Compliance with RoHS 3 and REACH regulations, ensuring environmental safety and meeting strict industrial standards for hazardous substances.
• Wide compatibility with inch system fasteners, making it versatile for various machinery, piping, and equipment assemblies.

Professional Applications & Engineering Value

This PTFE plastic flat washer is engineered to address critical challenges in demanding industrial settings, where exposure to extreme temperatures and aggressive chemicals can compromise component integrity. Made from high-grade PTFE (Teflon), it delivers outstanding thermal stability up to 500°F and resistance to a broad range of chemicals, preventing swelling, cracking, or failure. The flat design and precise inch dimensions (ID 0.37", OD 1.09") ensure a tight seal and even pressure distribution on 5/16" screws, reducing the risk of leaks and galvanic corrosion in pipelines, chemical processing equipment, and electrical enclosures. Its white color and insulation properties further support identification and safety in applications requiring non-conductive barriers, making it a reliable choice for aerospace, automotive, and food processing industries that prioritize durability and regulatory compliance.

Specification Summary & Compliance

This flat washer adheres to standard inch system measurements with an inner diameter of 0.37", outer diameter of 1.09", and thickness ranging from 0.226" to 0.236", ensuring precise fit and function for 5/16" screw sizes. It is manufactured from PTFE plastic with a hardness of Durometer 55D and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances and supporting safe use in industrial applications.