S-91755A163 0.94" ID x 1.343" OD Self-Retaining Washers

Key Features & Benefits at a Glance

• Self-retaining design ensures secure positioning during assembly, reducing installation time and preventing misalignment in dynamic applications.
• Nylon plastic construction offers excellent corrosion resistance and electrical insulation, ideal for harsh or sensitive industrial environments.
• Rockwell R120 hardness provides reliable durability and wear resistance, maintaining performance under repeated stress and vibration.
• Broad temperature tolerance from -40°F to 180°F allows consistent operation in extreme conditions, from freezing cold to moderate heat.
• Precision dimensions (0.94" ID x 1.343" OD) ensure a perfect fit for 7/8" screws, minimizing play and enhancing load distribution.
• RoHS 3 (2015/863/EU) compliance guarantees environmentally safe materials, meeting global regulatory standards for restricted substances.
• Controlled thickness (0.052-0.072") delivers uniform compression and reliable sealing, improving assembly consistency and joint integrity.

Professional Applications & Engineering Value

This nylon self-retaining washer is engineered to address common industrial challenges such as vibration loosening, corrosion, and thermal expansion. Made from high-grade nylon plastic, it provides inherent resistance to moisture, chemicals, and electrical currents, making it suitable for electrical enclosures, automotive assemblies, and outdoor machinery. The self-retaining feature locks the washer in place during installation, streamlining assembly lines and reducing rework. With an operational range from -40°F to 180°F, it maintains dimensional stability and mechanical properties in fluctuating temperatures, ensuring long-term reliability in extreme environment applications. Its precise inch system measurements and robust design support efficient, error-free fastening in heavy-duty industrial settings.

Specification Summary & Compliance

This washer adheres to inch system dimensional standards with an ID of 0.94", OD of 1.343", and thickness range of 0.052-0.072" for consistent fit with 7/8" screw sizes. It meets RoHS 3 (2015/863/EU) compliance, ensuring it is free from hazardous substances. The Rockwell R120 hardness and nylon material provide reliable performance under specified temperature limits, supporting quality and safety in manufacturing and assembly processes.