S-92150A228 0.546" ID x 1.63" OD MS51859-22 Mil. Spec. Plastic Washers

Key Features & Benefits at a Glance

• Excellent electrical insulation prevents current leakage and short circuits in sensitive electronic assemblies
• Superior corrosion resistance ensures long-term reliability in humid or chemically aggressive environments
• Precision dimensional control with 0.546" ID and 1.63" OD guarantees perfect fit for 1/2" screw applications
• Lightweight nylon construction reduces overall assembly weight while maintaining structural integrity
• Temperature resilience up to 180°F maintains performance in moderate heat applications
• REACH compliance ensures environmental responsibility and global regulatory acceptance
• MS51859-22 specification compliance guarantees consistent quality and interoperability in military and aerospace applications

Professional Applications & Engineering Value

This nylon plastic flat washer delivers critical engineering solutions where metal washers would compromise performance. The white nylon material provides inherent electrical insulation properties, making it ideal for electrical enclosures, control panels, and electronic assemblies where current isolation is paramount. Its corrosion-resistant nature eliminates galvanic corrosion concerns when used with dissimilar metals, particularly in marine, chemical processing, and outdoor applications. The precise 0.546" ID x 1.63" OD dimensions ensure optimal load distribution for 1/2" screw fastening systems, preventing surface damage and maintaining joint integrity. Meeting MS51859-22 specifications, this washer brings military-grade reliability to commercial applications where vibration resistance and dimensional stability are critical.

Specification Summary & Compliance

This flat washer features precise dimensional tolerances with internal diameter of 0.546", outer diameter of 1.63", and thickness ranging from 0.015" to 0.025". Manufactured to meet MS51859-22 military specifications, it ensures consistent performance in demanding applications. The washer is REACH compliant (EC 1907/2006) as of June 14, 2023, containing no SVHCs above threshold limits. Rated for continuous service up to 180°F maximum temperature, this inch-system washer provides reliable performance while maintaining electrical insulation and corrosion resistance properties throughout its service life.