S-90097A163 0.504" ID x 0.645" OD Insulating Washers

Key Features & Benefits at a Glance

• Excellent corrosion resistance with nylon plastic construction, eliminating rust concerns in humid or chemical environments
• Secure fastener insulation thanks to non-conductive nylon material, preventing electrical shorts in sensitive applications
• Reliable performance across extreme temperatures from -40°F to 180°F, maintaining integrity in varying operational conditions
• Consistent dimensional stability with precise 0.504" ID and 0.548" sleeve OD ensuring proper fit for 1/2" screws
• Enhanced vibration resistance from the sleeve design and Rockwell R118 hardness, reducing loosening in dynamic applications
• Environmental compliance assurance with RoHS 3 and REACH compliance, meeting strict industrial regulatory standards
• Reduced assembly weight compared to metal washers, ideal for applications where weight savings are critical

Professional Applications & Engineering Value

This nylon plastic sleeve washer delivers critical engineering solutions where metal fasteners fall short. The off-white nylon construction provides inherent electrical insulation, making it ideal for electrical enclosures, control panels, and automotive wiring systems where short-circuit prevention is paramount. Its sleeve-type design offers superior vibration dampening compared to flat washers, maintaining bolt tension in machinery, conveyor systems, and outdoor equipment subject to constant movement. The material's natural lubricity reduces galling and allows for smoother assembly in industrial applications involving repeated disassembly. With a temperature range of -40°F to 180°F, this washer performs reliably in both freezer applications and moderate heat environments, outperforming many plastic alternatives with limited thermal stability.

Specification Summary & Compliance

This sleeve washer features precise inch system dimensions including 0.504" ID, 0.645" OD, and 0.905" overall height with 0.75" sleeve height, engineered for compatibility with 1/2" screw size fasteners. Manufactured from nylon plastic with Rockwell R118 hardness rating, the washer maintains dimensional stability under load. The product fully complies with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations concerning chemical safety, ensuring environmental responsibility in industrial supply chains.