S-90089A335 0.375" ID x 0.625" OD Plastic Washers

Key Features & Benefits at a Glance

• Superior electrical insulation provided by hard fiber material, preventing current leakage in electrical assemblies
• Excellent vibration dampening characteristics that maintain bolt tension and reduce loosening under stress
• High-temperature resistance up to 230°F, ensuring reliable performance in demanding thermal environments
• Precise dimensional fit with 0.375" ID perfectly matching 3/8" screws for secure, gap-free installation
• Enhanced load distribution through the 0.625" OD, protecting surfaces from damage and deformation
• Consistent thickness control (0.014-0.016") ensuring uniform compression and reliable sealing performance
• Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance and safety

Professional Applications & Engineering Value

These hard fiber flat washers deliver exceptional engineering value in applications requiring reliable electrical insulation and thermal stability. The gray hard fiber material provides excellent dielectric properties while maintaining structural integrity under compression. Engineered with precision inch system dimensions (0.375" ID × 0.625" OD), these washers ensure perfect fitment for 3/8" screws in electrical enclosures, control panels, and machinery assemblies. The material's natural lubricity reduces friction during installation while the 0.014-0.016" thickness provides consistent spacing and reliable performance in temperature-sensitive environments up to 230°F. These industrial washers solve critical challenges in electrical isolation, thermal management, and corrosion prevention where metal washers would compromise system integrity.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 0.375" inner diameter, 0.625" outer diameter, and controlled thickness range of 0.014-0.016". Manufactured from hard fiber material in gray color, these washers are specifically designed for 3/8" screw applications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. With a maximum temperature rating of 230°F, these washers meet industrial requirements for thermal performance while providing reliable electrical insulation properties.