This Belleville Disc Spring Washer measures .500" in diameter, .255" in outer diameter, and .038" in thickness, made from phosphated steel for enhanced durability. Designed to provide a reliable spring action, this washer is ideal for applications requiring load retention and vibration resistance. Its unique shape allows for efficient load distribution, making it suitable for various mechanical assemblies. The phosphated finish offers additional protection against corrosion, ensuring longevity in demanding environments.