S-92150A221 0.29" ID x 0.572" OD MS51859-17 Mil. Spec. Plastic Washers

Key Features & Benefits at a Glance

• Excellent electrical insulation properties prevent current leakage and short circuits in electrical assemblies
• Superior corrosion resistance ensures long-term reliability in humid or chemically exposed environments
• Lightweight nylon construction reduces overall assembly weight without compromising performance
• Precise dimensional tolerances guarantee perfect fit for 1/4" screw applications and consistent performance
• Temperature resistance up to 180°F maintains structural integrity in moderate heat conditions
• Non-conductive and non-magnetic properties ideal for sensitive electronic and electrical applications
• REACH compliance ensures environmental safety and regulatory adherence for international markets

Professional Applications & Engineering Value

These nylon plastic flat washers provide critical solutions for engineering challenges where metal fasteners fall short. The white nylon material offers inherent electrical insulation properties, making them ideal for electrical assemblies, control panels, and electronic enclosures where preventing electrical conductivity is paramount. Their corrosion-resistant nature eliminates galvanic corrosion concerns when used with dissimilar metals, extending service life in industrial environments. The MS51859-17 specification ensures consistent dimensional accuracy and performance reliability for 1/4" screw applications across automotive, aerospace, and manufacturing sectors. The material's natural lubricity reduces friction during installation while maintaining secure fastening under vibration conditions.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 0.29" inner diameter, 0.572" outer diameter, and 0.056-0.070" thickness range, engineered specifically for 1/4" screw size applications. Manufactured to meet MS51859-17 military specification standards, ensuring consistent quality and performance. The product is fully REACH (EC 1907/2006) compliant regarding substance restrictions and demonstrates commitment to environmental responsibility. The nylon plastic construction provides reliable performance within the specified temperature range up to 180°F while maintaining dimensional stability and mechanical properties.