S-93785A713 4.3 mm ID x 9 mm OD DIN 125 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal stability with a wide operating range from -20°F to 500°F, ensuring reliable performance in extreme temperature environments
• Superior chemical resistance due to 30% carbon-filled PEEK construction, ideal for harsh industrial and chemical processing applications
• Enhanced dimensional stability and wear resistance with Rockwell M103 hardness, maintaining precise tolerances under load
• Guaranteed precision fit with DIN 125 compliance, providing consistent performance with M4 screws in metric assemblies
• Lightweight and non-corrosive black plastic design, reducing equipment weight and eliminating rust in sensitive environments
• Regulatory compliance assurance with RoHS 3 and REACH certifications, meeting strict environmental and safety standards
• Optimized load distribution with precise 4.3mm ID and 9mm OD dimensions, preventing surface damage and loosening in high-vibration settings

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these carbon-filled PEEK flat washers deliver critical solutions where metal components fail. The 30% carbon filler significantly enhances structural integrity and dimensional stability, preventing deformation under high mechanical stress and thermal cycling. This makes them ideal for high-temperature applications in automotive, aerospace, and chemical processing equipment, where exposure to aggressive chemicals and temperatures from -20°F to 500°F is common. The DIN 125 compliant metric design ensures seamless integration with M4 screw assemblies, providing consistent clamping force and vibration resistance. By offering superior chemical resistance and eliminating galvanic corrosion risks, these washers extend equipment lifespan and reduce maintenance costs in critical industrial applications.

Specification Summary & Compliance

This M4 metric flat washer adheres to DIN 125 dimensional standards with an ID of 4.3mm, OD of 9mm, and thickness between 0.7-0.9mm. Manufactured from carbon-filled PEEK plastic with 30% filler content and Rockwell M103 hardness, it meets rigorous industry specifications for precision and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial use.