S-92217A365 0.125" ID x 0.375" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Precise load distribution with 0.125" ID and 0.375" OD, preventing surface damage and maintaining joint integrity.
• Consistent dimensional accuracy and uniform thickness (0.036-0.045"), enabling reliable performance in repetitive assembly operations.
• Guaranteed mechanical compatibility with No. 4 screws, reducing installation errors and improving assembly efficiency.
• Compliance with ASME B18.21.1 standards, ensuring interchangeability and meeting rigorous industrial specifications.
• Environmental regulation adherence with RoHS 3 and REACH compliance, supporting global supply chain requirements.
• Enhanced durability from stainless steel material, offering excellent wear resistance for extended service life.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address critical challenges in industrial fastening, such as galvanic corrosion, vibration loosening, and surface marring. Its precise 0.125" ID x 0.375" OD dimensions and uniform thickness ensure optimal load distribution under No. 4 screw heads, preventing embedding into soft materials and maintaining clamp force in dynamic applications. The ASME B18.21.1 compliance guarantees dimensional consistency for seamless integration into existing assemblies, reducing rework and downtime. Ideal for electrical enclosures, machinery, and outdoor equipment, these washers provide reliable performance where moisture, chemicals, or temperature variations are concerns, making them a trusted component for maintenance and OEM projects.

Specification Summary & Compliance

This flat washer meets ASME B18.21.1 specifications, ensuring precise dimensional tolerances for inch-system applications. Key parameters include an inner diameter of 0.125", outer diameter of 0.375", and thickness ranging from 0.036" to 0.045". The product is manufactured from 18-8 stainless steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally conscious procurement and usage in regulated industries.