S-90295A215 0.141" ID x 0.281" OD ASME B18.22.1 Plastic Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to durable Nylon Plastic construction, eliminating rust and galvanic corrosion in harsh environments.
• Excellent electrical and thermal insulation properties, protecting components and assemblies from electrical shorts and thermal transfer.
• Broad operational temperature tolerance from -40°F to 300°F, ensuring reliable performance in both extreme cold and high-heat applications.
• Consistent load distribution and vibration dampening with a Rockwell R115 hardness, reducing stress on fastened materials and preventing loosening.
• Precise dimensional fit for No. 5 screws with a 0.141" ID and 0.281" OD, ensuring easy installation and a secure, flush assembly.
• Full compliance with major industry standards including ASME B18.22.1, guaranteeing dimensional accuracy and interchangeability.
• Environmentally responsible manufacturing with adherence to RoHS 3 and REACH, supporting your green procurement and regulatory requirements.

Professional Applications & Engineering Value

This Nylon Flat Washer is engineered to solve critical challenges in electrical, automotive, and outdoor equipment assemblies where corrosion resistance and electrical insulation are paramount. The Nylon Plastic material inherently resists moisture, chemicals, and UV degradation, preventing failure in demanding conditions. Its 0.141" ID and 0.281" OD provide an exact fit for No. 5 screws, ensuring even pressure distribution to protect sensitive surfaces from damage and maintain joint integrity under vibration. The green color aids in part identification and inventory management. Ideal for use in control panels, marine hardware, and HVAC systems, this washer extends equipment lifespan by mitigating galvanic corrosion and thermal stress, making it a reliable choice for industrial plastic washers in critical B2B applications.

Specification Summary & Compliance

This washer conforms to the dimensional requirements of ASME B18.22.1 for Type A plain washers, ensuring precise fit and function. Key specifications include an Inside Diameter (ID) of 0.141", Outside Diameter (OD) of 0.281", and a Thickness range of 0.028-0.036" for use with No. 5 screw size. The material hardness is rated Rockwell R115. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances and supports responsible sourcing and usage in global markets.