S-91525A340 0.688" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction, ideal for chemical, marine, and outdoor applications.
• Enhanced load distribution and joint integrity from precision dimensions (0.688" ID, 1.5" OD) ensuring a secure fit for 5/8" screws.
• Consistent mechanical strength with Rockwell B68 hardness, providing reliable performance under heavy-duty industrial stress.
• Long-term durability and reliability from the robust thickness range (0.110-0.140"), reducing wear and maintenance needs.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in regulated industries.
• Broad compatibility with inch-system fasteners, simplifying sourcing and assembly in diverse mechanical systems.
• Resistance to pitting and crevice corrosion thanks to 316 stainless steel's molybdenum content, extending service life in aggressive conditions.

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to address critical challenges in demanding industrial settings, such as exposure to corrosive chemicals, saltwater, and high humidity. The molybdenum-enhanced 316 material provides exceptional resistance to pitting and crevice corrosion, making it a top choice for marine equipment, chemical processing plants, and food industry machinery. Its precise inch dimensions (0.688" ID and 1.5" OD) ensure optimal load distribution, preventing bolt loosening and surface damage under vibration or heavy loads. By incorporating Rockwell B68 hardness, it maintains structural integrity in heavy-duty applications, reducing downtime and replacement costs. This washer is ideal for engineers seeking reliable corrosion-resistant hardware that meets stringent performance and compliance requirements.

Specification Summary & Compliance

This flat washer adheres to standard inch measurement tolerances, with an inner diameter of 0.688", outer diameter of 1.5", and thickness ranging from 0.110" to 0.140", designed for use with 5/8" screws. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use. The Rockwell B68 hardness confirms consistent material strength, supporting reliable performance in various mechanical assemblies.