S-91525A320 0.203" ID x 0.562" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments like marine and chemical processing.
• Optimized load distribution and reliable sealing for No. 10 screws, preventing loosening and material damage.
• Enhanced durability from Rockwell B68 hardness, ensuring long service life under high-stress conditions.
• Precise dimensional fit with 0.203" ID and 0.562" OD, providing consistent performance in inch-system assemblies.
• Versatile thickness range (0.060-0.090") allows for flexibility in achieving proper clamp load and gap filling.
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safety and environmental responsibility.
• Broad industrial applicability as a flat washer, suitable for machinery, construction, and marine equipment.

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to address common industrial challenges such as galvanic corrosion, vibration-induced failure, and load concentration. Its high chromium and nickel content provides exceptional resistance to pitting and crevice corrosion, making it a reliable choice for marine environments, chemical plants, and outdoor installations. The precise inner diameter (0.203") and outer diameter (0.562") ensure a perfect fit for No. 10 screws, distributing clamp force evenly to prevent surface damage and maintain joint integrity. With a controlled thickness of 0.060-0.090", it compensates for minor misalignments and thermal expansion, reducing maintenance needs and downtime in heavy-duty applications.

Specification Summary & Compliance

This flat washer adheres to inch-system measurements with an ID of 0.203", OD of 0.562", and thickness ranging from 0.060" to 0.090". It is manufactured from 316 stainless steel with a hardness of Rockwell B68 to ensure mechanical strength and wear resistance. The product conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing the absence of restricted hazardous substances and supporting sustainable procurement practices for industrial and engineering projects.