S-95611A224 0.188" ID x 0.5" OD Plastic Washers

Key Features & Benefits at a Glance

• Superior Chemical Resistance – Made from durable PVC plastic to withstand exposure to harsh chemicals, acids, and solvents, extending service life in corrosive environments.
• Excellent Electrical Insulation – Provides reliable non-conductive properties, making these washers ideal for electrical assemblies and preventing short circuits.
• Precision Fit for No. 8 Screws – With an exact 0.188" inner diameter and 0.5" outer diameter, ensures secure, vibration-resistant fastening without loosening.
• High Durability & Load Distribution – Durometer 65D hardness offers firm support and even pressure distribution, protecting surfaces from damage under load.
• Temperature Resilience – Rated for continuous use up to 140°F, maintaining structural integrity in moderate heat conditions.
• Regulatory Compliance Assurance – Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring safe use in regulated industrial and consumer applications.
• Lightweight & Non-Corrosive – PVC material is inherently rust-proof and lightweight, reducing overall assembly weight and eliminating galvanic corrosion risks.

Professional Applications & Engineering Value

These PVC plastic flat washers deliver critical performance in environments where metal washers fail. The gray PVC material offers inherent chemical resistance, making them suitable for chemical processing, water treatment, and laboratory equipment where exposure to aggressive substances is common. Their excellent electrical insulation properties are vital in electrical enclosures, control panels, and electronic assemblies to prevent current leakage and ensure safety. The precise 0.188" ID and 0.5" OD dimensions, tailored for No. 8 screws, provide a snug fit that minimizes play and distributes clamp load effectively, preventing material fatigue and joint failure. This combination of material properties and dimensional accuracy solves key industrial challenges: corrosion elimination, electrical safety, and reliable fastening in non-metallic assemblies.

Specification Summary & Compliance

This flat washer is manufactured to inch system standards with an inner diameter of 0.188", outer diameter of 0.5", and thickness ranging from 0.025" to 0.035". It is designed for use with No. 8 screw size and features a Durometer 65D hardness for consistent performance. The product is confirmed to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, adhering to restricted substance limits and supporting global supply chain requirements for industrial safety and environmental protection.