S-95647A163 19.1 mm ID x 33.7 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Superior chemical resistance from Delrin® Acetal Plastic material protects against corrosion and degradation in harsh industrial environments
• Excellent dimensional stability maintains precise 19.1mm ID and 33.7mm OD measurements for consistent performance under load
• High-temperature capability withstands up to 180°F (82°C) for reliable operation in various thermal conditions
• Optimal load distribution with 2.7-3.3mm thickness provides even pressure dispersion for M18 screw applications
• Regulatory compliance assurance with RoHS 3 and REACH standards ensures environmental and safety requirements are met
• Non-conductive properties make it ideal for electrical insulation and applications requiring dielectric separation
• Low friction surface reduces wear on mating components and extends assembly service life

Professional Applications & Engineering Value

This M18 Delrin® Acetal Plastic Flat Washer delivers exceptional engineering value in applications where metal washers would corrode or conduct electricity. The white metric washer design provides reliable performance in chemical processing equipment, food machinery, and electrical enclosures where chemical resistance and non-conductive properties are critical. The acetal plastic construction maintains dimensional stability under varying temperatures and loads, preventing deformation that could compromise fastener integrity. Engineered for industrial plastic washers applications, it solves common pain points like galvanic corrosion, component wear, and contamination concerns in sensitive manufacturing environments. The precise 19.1mm ID ensures perfect fitment with M18 screws while the 33.7mm OD provides optimal bearing surface distribution.

Specification Summary & Compliance

This metric flat washer features precise dimensional specifications with 19.1mm inner diameter, 33.7mm outer diameter, and 2.7-3.3mm thickness range. Manufactured from Delrin® Acetal Plastic in white color, it complies with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, including the latest SVHC compliance as of June 14, 2023. The washer maintains dimensional stability across its operational temperature range up to 180°F and is specifically engineered for M18 screw applications in metric fastening systems.