S-90295A473 0.406" ID x 1" OD Plastic Washers
Plastic Washers
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior chemical resistance for reliable performance in harsh industrial environments
- Excellent electrical insulation properties to prevent current leakage and short circuits
- Wide temperature tolerance from -40°F to 180°F for stable operation in varying conditions
- Rockwell R115 hardness rating ensures consistent durability and load distribution
- Precision inch dimensions (0.406" ID, 1" OD) for perfect fit with 3/8" fasteners
- Full regulatory compliance with RoHS 3 and REACH standards for safe global usage
- Lightweight nylon construction reduces overall assembly weight without compromising strength
Professional Applications & Engineering Value
This nylon plastic flat washer delivers critical engineering solutions where metal fasteners fall short. The Rockwell R115 hardness provides optimal surface protection while maintaining flexibility, preventing component damage during torque application. Its chemical-resistant nylon material withstands exposure to oils, solvents, and moisture, making it ideal for automotive, electrical enclosures, and food processing equipment. The electrical insulation properties eliminate galvanic corrosion risks in mixed-material assemblies and provide essential safety in electrical applications. With a temperature range of -40°F to 180°F, this washer maintains dimensional stability across extreme environmental conditions, ensuring long-term reliability in outdoor, industrial, and HVAC systems where thermal cycling is common.
Specification Summary & Compliance
Manufactured to precise inch system standards with 0.406" inner diameter and 1" outer diameter for 3/8" screw applications. The 0.054-0.074" thickness range ensures proper compression and spacing in assembled components. This flat washer complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no restricted substances. The nylon material meets industry standards for plastic fasteners with verified Rockwell R115 hardness for consistent mechanical performance across production batches.
