S-91755A151 0.564" ID x 0.734" OD Self-Retaining Washers

Key Features & Benefits at a Glance

• Secure vibration-resistant locking through self-retaining design prevents loosening in high-vibration industrial environments
• Excellent temperature resilience maintains performance across extreme conditions from -40°F to 180°F
• Superior corrosion resistance with nylon plastic construction eliminates rust and galvanic corrosion concerns
• Precision dimensional control with 0.052-0.072" thickness ensures consistent compression and reliable sealing
• Dual-standard compatibility fits both 3/8" inch and M10 metric screw systems for global application flexibility
• Rockwell R120 hardness provides optimal balance of durability and flexibility for long service life
• Environmental compliance assurance with RoHS 3 certification meets international regulatory standards

Professional Applications & Engineering Value

This nylon self-retaining washer delivers exceptional engineering value in demanding applications where traditional metal washers fail. The nylon plastic construction provides inherent electrical insulation and chemical resistance, making it ideal for electrical enclosures, automotive assemblies, and outdoor equipment exposed to moisture and chemicals. The self-retaining feature significantly reduces installation time while preventing washer loss during assembly in hard-to-reach areas. With its broad temperature range from -40°F to 180°F, this washer maintains dimensional stability and mechanical properties in both freezing outdoor environments and elevated temperature industrial settings. The precise 0.564" ID and 0.734" OD dimensions ensure perfect fitment for 3/8" and M10 screws, providing reliable performance in vibration-prone applications across multiple industries.

Specification Summary & Compliance

This self-retaining washer features precise dimensional specifications with 0.564" inner diameter and 0.734" outer diameter, designed specifically for 3/8" inch and M10 metric screw systems. The controlled thickness range of 0.052-0.072" ensures consistent performance across production batches. Manufactured from high-grade nylon plastic with Rockwell R120 hardness rating, the washer delivers optimal mechanical properties for industrial fastening applications. The product is fully RoHS 3 (2015/863/EU) compliant and meets international environmental standards for restricted substances, making it suitable for global distribution and use in regulated industries.