S-98017A601 0.099" ID x 0.25" OD NAS1149-CN232R; AN960-C2 Mil. Spec. Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with Passivated 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Precise dimensional fit with 0.099" ID and 0.25" OD, ensuring reliable performance with No. 2 screws
• Enhanced load distribution and surface protection due to controlled thickness between 0.028" and 0.036"
• Consistent mechanical strength backed by Rockwell B70 hardness for long-term durability
• Guaranteed aerospace and industrial compliance with NAS1149-CN232R and AN960-C2 specifications
• Environmental and safety assurance through full RoHS 3 and REACH compliance
• Broad industrial applicability in assemblies requiring inch-system precision and corrosion-resistant components

Professional Applications & Engineering Value

This flat washer is engineered to address critical challenges in precision assemblies, particularly where corrosion resistance and dimensional accuracy are paramount. The Passivated 18-8 Stainless Steel material provides excellent protection against oxidation and chemical exposure, extending service life in demanding environments such as aerospace, marine, and chemical processing equipment. Its specific 0.099" ID and 0.25" OD ensure a perfect fit for No. 2 screw applications, preventing loosening and distributing clamp load effectively to protect sensitive surfaces. By meeting NAS1149-CN232R and AN960-C2 standards, it delivers reliable performance in high-stakes industrial and military applications, reducing maintenance needs and replacement costs.

Specification Summary & Compliance

This washer features precise inch-system dimensions: 0.099" inner diameter, 0.25" outer diameter, and a thickness range of 0.028"–0.036". It conforms to NAS1149-CN232R and AN960-C2 specifications, ensuring adherence to stringent aerospace and industrial standards. The material is 18-8 Stainless Steel with a passivated surface finish, providing enhanced corrosion resistance. Mechanical properties include a Rockwell B70 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility for global supply chains.