S-91755A316 0.209" ID x 0.453" OD Self-Retaining Washers

Key Features & Benefits at a Glance

• Superior screw retention with self-locking design prevents loosening from vibration and thermal cycling
• Exceptional thermal performance maintains structural integrity across extreme temperatures from -40°F to 180°F
• Durable nylon construction with Rockwell R120 hardness provides excellent wear resistance and longevity
• Dual compatibility works seamlessly with both No. 10 (inch) and M5 (metric) screw systems
• Precision dimensional control with 0.209" ID and 0.453" OD ensures perfect fit and consistent performance
• Environmentally compliant meets RoHS 3 standards for safe use in regulated applications
• Non-conductive properties of nylon plastic prevent electrical interference and galvanic corrosion

Professional Applications & Engineering Value

This nylon self-retaining washer delivers critical engineering solutions where traditional washers fail. The off-white nylon plastic construction provides excellent thermal stability across extreme temperature ranges from -40°F to 180°F, making it ideal for automotive, aerospace, and outdoor equipment applications. The self-retaining design ensures secure positioning during assembly, significantly reducing installation time and preventing misalignment in high-vibration environments. With dual compatibility for both No. 10 and M5 screw sizes, this washer eliminates inventory duplication and streamlines procurement for mixed-standard operations. The material's inherent corrosion resistance and electrical insulation properties make it perfect for electronic enclosures, marine applications, and chemical processing equipment where metal components would degrade or cause interference.

Specification Summary & Compliance

This precision self-retaining washer features exact dimensional specifications with 0.209" inner diameter and 0.453" outer diameter, manufactured from high-grade nylon plastic with Rockwell R120 hardness. The component maintains dimensional stability across its specified temperature range and is fully RoHS 3 (2015/863/EU) compliant for environmental safety. Engineered for use with both inch (No. 10) and metric (M5) fastener systems, this washer meets industrial standards for precision plastic components in demanding applications.