S-92844A123 0.125" ID x 0.438" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction
• Precise dimensional fit for No. 4 screws with 0.125" ID and 0.438" OD ensuring secure fastening
• Consistent load distribution and surface protection with controlled 0.036-0.045" thickness
• Guaranteed mechanical reliability through compliance with the ASME B18.21.1 standard
• Safe for sensitive applications with full RoHS 3 and REACH environmental compliance
• Long-lasting performance in chemical and marine-exposed industrial settings
• Interchangeable compatibility with inch-system fasteners for simplified procurement

Professional Applications & Engineering Value

These 316 stainless steel flat washers are engineered to solve critical challenges in corrosive and demanding industrial environments. The high molybdenum content in the alloy provides exceptional resistance to chlorides and acidic conditions, preventing premature failure in chemical processing, marine, and offshore applications. The precise 0.125" ID x 0.438" OD dimensions ensure perfect alignment with No. 4 screws, distributing clamp load effectively to prevent surface damage and loosening under vibration. Manufactured to ASME B18.21.1 specifications, these flat washers deliver reliable performance in assembly lines, electrical enclosures, and equipment where dimensional accuracy and corrosion resistance are non-negotiable for operational safety and longevity.

Specification Summary & Compliance

This flat washer meets dimensional requirements per ASME B18.21.1 standard with inch-system measurements: 0.125" Inner Diameter, 0.438" Outer Diameter, and thickness range of 0.036-0.045". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial components.