S-90295A246 0.25" ID x 1.5" OD ASME B18.22.1 Plastic Washers

Key Features & Benefits at a Glance

• Superior corrosion and chemical resistance due to high-quality nylon plastic construction, ensuring long-term reliability in harsh industrial environments.
• Excellent electrical insulation properties for safe use in electrical assemblies, preventing short circuits and enhancing workplace safety.
• Wide operating temperature range from -40°F to 300°F, maintaining structural integrity and performance in extreme thermal conditions.
• High hardness (Rockwell R115) provides excellent load distribution and resistance to deformation under pressure, extending the lifespan of your assemblies.
• Precise dimensional fit with 1.5" OD and 0.25" ID, ensuring easy installation and secure fastening for No. 12 screws without slippage.
• Compliance with ASME B18.22.1 standards guarantees consistent quality, interchangeability, and reliability in mechanical applications.
• RoHS 3 and REACH compliant for environmentally responsible sourcing and use, meeting global regulatory requirements.

Professional Applications & Engineering Value

These nylon flat washers are engineered to address common industrial challenges such as galvanic corrosion, vibration loosening, and electrical isolation needs. Made from durable nylon plastic, they provide a non-conductive, lightweight alternative to metal washers, ideal for electrical enclosures, automotive assemblies, and outdoor equipment. The green color aids in part identification, while the precise inch system dimensions and flat washer design ensure uniform stress distribution, preventing surface damage and maintaining bolt tension. With a temperature range from -40°F to 300°F, they perform reliably in both freezing and high-heat environments, reducing maintenance costs and downtime.

Specification Summary & Compliance

This washer features an ID of 0.25", OD of 1.5", and thickness of 0.084-0.104", designed for No. 12 screw sizes. It conforms to ASME B18.22.1 for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial applications.