S-90295A332 0.109" ID x 0.312" OD Plastic Washers

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to nylon plastic construction, eliminating rust and reducing maintenance in harsh environments.
• Superior electrical insulation properties for safe use in electrical assemblies, preventing short circuits.
• Wide operating temperature range from -40°F to 180°F, ensuring reliable performance in both extreme cold and moderate heat.
• Consistent dimensional stability with a 0.109" ID and 0.312" OD, providing a precise fit for No. 3 screws and preventing loosening.
• Durable wear resistance backed by Rockwell R115 hardness, extending service life under vibration and load.
• Lightweight and non-marring surface protects sensitive materials from scratches and damage during fastening.
• Full regulatory compliance with RoHS 3 and REACH, meeting global environmental and safety standards for industrial use.

Professional Applications & Engineering Value

This nylon plastic flat washer is engineered to solve common industrial challenges, such as galvanic corrosion and electrical conductivity in metal assemblies. Its non-conductive nature makes it ideal for electrical enclosures, control panels, and electronic devices where insulation is critical. The wide temperature tolerance from -40°F to 180°F ensures dependable sealing and load distribution in outdoor equipment, automotive components, and HVAC systems exposed to seasonal variations. With a precise 0.109" ID for No. 3 screw size compatibility, it prevents thread damage and maintains clamp force, reducing assembly errors and rework. The Rockwell R115 hardness provides resilience against abrasion, making it suitable for high-vibration applications in machinery and consumer appliances, while the lightweight nylon material contributes to overall weight reduction without sacrificing strength.

Specification Summary & Compliance

This flat washer features an ID of 0.109" and OD of 0.312" with a thickness range of 0.026-0.038", designed for use with No. 3 screws in inch measurement systems. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards. The material's Rockwell R115 hardness and operating range of -40°F to 180°F confirm its suitability for diverse industrial applications.