S-95481A141 5.3 mm ID x 15.3 mm OD Finishing Washers

Key Features & Benefits at a Glance

• Exceptional temperature resistance maintains structural integrity from -40°F to 180°F for reliable performance in extreme environments
• Superior electrical insulation properties of nylon plastic prevent electrical conductivity and galvanic corrosion in sensitive applications
• Precise 90° countersink angle ensures flush mounting with M5 screws for streamlined assemblies and improved aesthetics
• Rockwell R120 hardness rating provides excellent wear resistance and durability against vibration loosening
• Lightweight nylon construction reduces overall assembly weight while maintaining strength comparable to metal alternatives
• Chemical and corrosion resistance makes these washers ideal for harsh industrial environments and outdoor applications
• Comprehensive compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance

Professional Applications & Engineering Value

Engineered for precision and reliability, these M5 metric countersunk washers manufactured from high-grade nylon plastic solve critical engineering challenges in electrical, automotive, and industrial assembly applications. The 90° countersink design provides seamless integration with matching screw heads, eliminating protrusions that could interfere with moving parts or compromise safety. The material's inherent electrical insulation properties prevent short circuits in electronic enclosures, while the extended temperature range ensures consistent performance from freezing conditions to elevated thermal environments. These nylon plastic washers offer excellent resistance to fuels, oils, and chemicals, making them superior to metal alternatives in corrosive applications where weight reduction and non-conductivity are paramount considerations for design engineers.

Specification Summary & Compliance

This M5 metric countersunk washer features precise dimensional specifications with 5.3mm ID and 15.3mm OD, maintaining standard metric system tolerances for consistent fit with M5 fasteners. The 3.5mm overall height and standardized 90° countersink angle ensure proper seating in countersunk holes. Manufactured to industry standards for plastic washers, the product demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to the latest environmental and safety requirements for industrial components.