S-93286A031 0.438" ID x 1" OD ASME B18.21.1 Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality aluminum material, ideal for harsh industrial environments
• Precise dimensional fit with 0.438" ID and 1" OD ensuring perfect alignment with 3/8" screws
• Consistent load distribution through controlled 0.073-0.078" thickness for enhanced joint stability
• Optimal hardness performance with Brinell 32 rating providing durable surface protection
• Industry-standard compliance with ASME B18.21.1 ensuring reliable mechanical performance
• Environmental responsibility through RoHS 3 and REACH compliance for sustainable operations
• Lightweight advantage of aluminum construction reducing overall assembly weight

Professional Applications & Engineering Value

These aluminum flat washers deliver exceptional engineering value in applications where corrosion resistance and weight reduction are critical. The precision-grade aluminum construction prevents galvanic corrosion while maintaining structural integrity, making them ideal for industrial equipment, marine applications, and aerospace assemblies. The controlled Brinell 32 hardness ensures consistent performance under vibration and load variations, while the ASME B18.21.1 compliance guarantees dimensional accuracy for reliable 3/8" screw fastening. The combination of lightweight properties and environmental compliance makes these washers a sustainable choice for modern manufacturing requirements.

Specification Summary & Compliance

This aluminum flat washer features precise inch system dimensions with 0.438" internal diameter, 1" outer diameter, and thickness ranging 0.073-0.078". Manufactured to ASME B18.21.1 standards for dimensional accuracy and performance reliability. The product maintains Brinell 32 hardness specifications and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across global industrial applications.