S-90295A242 0.219" ID x 1.5" OD ASME B18.22.1 Plastic Washers

Key Features & Benefits at a Glance

• Excellent corrosion resistance with Nylon Plastic construction, eliminating rust issues in humid or chemical environments
• Precise fit for No. 10 screws with 0.219" ID, ensuring secure fastening and preventing loosening
• Wide temperature tolerance from -40°F to 300°F, maintaining performance in extreme thermal conditions
• Enhanced durability with Rockwell R115 hardness, providing reliable load distribution and surface protection
• Industry-standard compliance with ASME B18.22.1, guaranteeing dimensional accuracy and interchangeability
• Environmental safety through RoHS 3 and REACH compliance, meeting strict regulatory requirements
• Optimal size coverage with 1.5" OD, offering effective bearing surface for various industrial assemblies

Professional Applications & Engineering Value

This Nylon Plastic Flat Washer delivers critical engineering solutions where metal fasteners fail. Its non-conductive and chemical-resistant properties make it ideal for electrical enclosures, food processing equipment, and marine applications, preventing galvanic corrosion and contamination. The Rockwell R115 hardness ensures consistent performance under vibration, while the temperature range from -40°F to 300°F allows use in outdoor, automotive, and HVAC systems without degradation. Designed specifically for No. 10 screws, it provides secure spacing and load distribution in assembly lines, reducing maintenance costs and improving equipment longevity.

Specification Summary & Compliance

This washer features precise inch system dimensions with 0.219" ID and 1.5" OD, manufactured to ASME B18.22.1 standards for consistent thread fit and flatness. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no restricted substances are used. The temperature resilience and Rockwell R115 hardness confirm reliable performance in demanding industrial environments.