S-95647A156 7.4 mm ID x 15 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Superior chemical resistance from Delrin® Acetal Plastic material prevents degradation in harsh industrial environments
• Excellent dimensional stability maintains precise 7.4mm ID and 15mm OD measurements under varying conditions
• High mechanical strength with Rockwell M90 hardness ensures reliable performance under load and vibration
• Optimal temperature performance rated for continuous use up to 180°F without compromising structural integrity
• Reduced friction and wear on mating surfaces extends the service life of both fastener and assembly components
• Environmental compliance assurance with RoHS 3 and REACH compliance for global market accessibility
• Precise M7 screw compatibility ensures perfect fit and even load distribution in metric assemblies

Professional Applications & Engineering Value

These Delrin® Acetal Plastic flat washers deliver exceptional engineering value in applications where metal corrosion, chemical exposure, or electrical insulation are primary concerns. The white metric washers provide excellent dimensional stability and low moisture absorption, making them ideal for precision assemblies in automotive, electrical enclosures, food processing equipment, and chemical handling systems. The material's natural lubricity reduces galling and seizing issues common in metal fasteners, while the M7-specific sizing ensures perfect compatibility with standard metric bolts. Their chemical resistance protects against degradation from oils, solvents, and cleaning agents, maintaining performance in demanding industrial environments where consistent spacing and reliable insulation are critical.

Specification Summary & Compliance

This metric flat washer features precise dimensional specifications with 7.4mm internal diameter, 15mm outer diameter, and 1.4-1.8mm thickness range. Manufactured from Delrin® Acetal Plastic with Rockwell M90 hardness rating, the washers comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring regulatory compliance for international industrial applications. The washers maintain structural integrity across a temperature range up to 180°F, providing reliable performance in various operating conditions while meeting industry standards for plastic flat washers in metric sizing systems.