S-90097A540 0.316" ID x 0.46" OD Insulating Washers

Key Features & Benefits at a Glance

• Superior electrical insulation properties thanks to nylon plastic construction, preventing current leakage in sensitive applications
• Excellent corrosion and chemical resistance for long-lasting performance in harsh industrial environments
• Reliable temperature stability maintaining integrity across extreme conditions from -40°F to 180°F
• Enhanced durability and wear resistance with Rockwell R118 hardness for extended service life
• Precise dimensional accuracy with 0.316" ID and 0.46" OD ensuring perfect fit for 5/16" screw applications
• Full regulatory compliance meeting RoHS 3 and REACH standards for global market acceptance
• Reduced assembly friction with smooth nylon surface for easier installation and maintenance

Professional Applications & Engineering Value

This nylon sleeve washer delivers critical engineering solutions where metal components fail. The off-white nylon plastic construction provides essential electrical insulation in panel boards, control systems, and electronic enclosures, preventing short circuits and ground faults. Its corrosion-resistant properties make it ideal for chemical processing, marine, and outdoor applications where moisture and corrosive agents degrade metal washers. The temperature resistance from -40°F to 180°F ensures dimensional stability in automotive underhood applications, HVAC systems, and industrial machinery exposed to thermal cycling. The sleeve design with 0.25" height provides superior load distribution and vibration dampening, protecting sensitive components from loosening in high-vibration environments while the Rockwell R118 hardness maintains structural integrity under constant pressure.

Specification Summary & Compliance

This precision sleeve washer features inch dimensions with 0.316" inner diameter, 0.46" outer diameter, and 0.355" overall height specifically engineered for 5/16" screw applications. Manufactured to exacting standards with Rockwell R118 hardness rating for consistent performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. The nylon plastic material maintains operational integrity across the specified temperature range of -40°F to 180°F.