S-99872A115 0.443" ID x 0.75" OD Plastic Washers

Key Features & Benefits at a Glance

• Enhanced durability with Rockwell M96 hardness for superior wear resistance in demanding industrial environments
• Reliable thermal performance across a wide operating range from -20°F to 230°F, maintaining structural integrity
• Chemical and corrosion resistance thanks to glass-filled nylon construction, ideal for harsh applications
• Precise dimensional stability with 0.443" ID and 0.75" OD ensuring consistent fit for 7/16" screws
• Compliance assurance with RoHS 3 and REACH regulations for safe, sustainable industrial use
• Lightweight and non-conductive properties reduce equipment weight and prevent electrical interference
• Consistent thickness between 0.057-0.067" provides uniform load distribution and vibration dampening

Professional Applications & Engineering Value

This glass-filled nylon flat washer delivers exceptional engineering value by solving critical industrial challenges. The glass-reinforced nylon material provides outstanding chemical resistance against oils, solvents, and industrial fluids while maintaining dimensional stability under varying conditions. Its high-temperature resistance up to 230°F makes it ideal for automotive, electrical enclosures, and machinery applications where thermal cycling occurs. The off-white color allows for easy identification in assembly processes, while the Rockwell M96 hardness ensures long service life without deformation. These plastic washers are particularly valuable in environments requiring electrical insulation and corrosion prevention, offering a reliable alternative to metal washers in corrosive or electrically sensitive applications.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 0.443" inner diameter and 0.75" outer diameter, specifically designed for 7/16" screw sizes. The thickness tolerance of 0.057-0.067" ensures consistent performance across manufacturing batches. The washer is manufactured from glass-filled nylon plastic and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for regulated industrial applications requiring environmental and safety compliance.