S-90295A245 0.25" ID x 1.25" OD ASME B18.22.1 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional corrosion and chemical resistance due to the durable Nylon Plastic material, ensuring long-term reliability in harsh industrial environments.
• Precise fit and secure load distribution with a 0.25" ID and 1.25" OD, specifically designed for No. 12 screws to prevent loosening and damage.
• Wide temperature tolerance from -40°F to 300°F, maintaining performance and dimensional stability in extreme thermal conditions.
• High hardness and durability with a Rockwell R115 rating, offering excellent resistance to wear and deformation under pressure.
• Compliance with industry standards including ASME B18.22.1, ensuring consistent quality, interchangeability, and safety in mechanical assemblies.
• Environmental and regulatory safety through RoHS 3 and REACH compliance, supporting sustainable and safe manufacturing practices.
• Easy identification and organization with a distinct green color, facilitating quick assembly and inventory management in fast-paced settings.

Professional Applications & Engineering Value

This nylon flat washer is engineered to address common challenges in industrial applications, such as vibration-induced loosening, galvanic corrosion, and thermal expansion. Made from high-grade Nylon Plastic, it provides excellent electrical insulation and resistance to oils, solvents, and moisture, making it ideal for electrical enclosures, automotive assemblies, and outdoor equipment. The precise 0.25" ID and 1.25" OD dimensions, combined with a controlled thickness range of 0.053-0.067", ensure a snug fit for No. 12 screws, distributing loads evenly and reducing stress on connected components. With a temperature range of -40°F to 300°F and Rockwell R115 hardness, these washers maintain integrity in fluctuating environments, from freezing conditions to high-heat machinery, enhancing the longevity and reliability of your industrial washers systems.

Specification Summary & Compliance

This washer meets ASME B18.22.1 specifications for dimensional accuracy and performance in inch system applications. It 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 industrial use. The product adheres to standard tolerances for flat washers, providing consistent quality and reliability in various mechanical fastening scenarios.