S-90295A470 0.39" ID x 0.75" OD Plastic Washers

Key Features & Benefits at a Glance

• Excellent corrosion resistance for long-lasting performance in harsh environments without rust or degradation
• Superior electrical insulation properties to prevent current leakage and ensure safe operation in electrical assemblies
• Outstanding chemical resistance maintains integrity when exposed to various solvents and industrial chemicals
• Reliable temperature performance from -40°F to 180°F for stable operation across diverse climate conditions
• Precise dimensional control with 0.39" ID and 0.75" OD ensures perfect fit for 3/8" screw applications
• Consistent hardness rating (Rockwell R115) provides uniform load distribution and vibration resistance
• Environmental compliance with RoHS 3 standards for safe, sustainable manufacturing practices

Professional Applications & Engineering Value

Engineered for demanding industrial environments, this nylon plastic flat washer delivers critical performance advantages where metal washers fail. The nylon material provides inherent electrical insulation, making it ideal for electrical enclosures, control panels, and electronic assemblies where current isolation is mandatory. Its chemical resistance protects against degradation from oils, solvents, and mild acids in manufacturing and processing equipment. The temperature range from -40°F to 180°F ensures dimensional stability in both freezing outdoor applications and heated indoor machinery. Unlike metal alternatives, this washer eliminates galvanic corrosion risks when used with dissimilar metals and provides consistent performance in corrosion-resistant applications without requiring additional coatings or treatments.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 0.39" inner diameter, 0.75" outer diameter, and thickness ranging from 0.057" to 0.067" for optimal compatibility with 3/8" screws. Manufactured to consistent quality standards with Rockwell R115 hardness rating for reliable performance. The product is fully RoHS 3 (2015/863/EU) compliant, ensuring adherence to environmental regulations and restricted substance directives. Suitable for applications requiring temperature resistance from -40°F to 180°F while maintaining mechanical properties and dimensional stability.