S-98019A525 0.938" ID x 2.25" OD MS15795-825; NASM15795; ASME B18.21.1 Mil. Spec. Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Exceptional load distribution due to precise 0.938" ID and 2.25" OD dimensions, reducing stress on fastened components and preventing surface damage.
• Reliable hardness and durability with Rockwell B70 rating, ensuring the washer maintains shape under high-pressure applications and repeated use.
• Guaranteed dimensional accuracy with a thickness range of 0.136-0.192", providing consistent performance and easy installation for 7/8" screw sizes.
• Compliance with major industry standards including MS15795-825, NASM15795, and ASME B18.21.1, ensuring interoperability and safety in regulated sectors.
• Environmental and safety compliance with RoHS 3 and REACH regulations, making it suitable for global supply chains and eco-conscious projects.
• Versatile application readiness in inch measurement systems, facilitating seamless integration into existing machinery and assembly lines.

Professional Applications & Engineering Value

This flat washer is engineered from passivated 18-8 stainless steel to address common industrial challenges such as corrosion-induced failure and component loosening in demanding environments. Its robust Rockwell B70 hardness and precise dimensional tolerances ensure reliable performance in heavy-duty applications, including machinery assembly, construction frameworks, and automotive systems. The passivated surface treatment enhances resistance to chemicals and moisture, prolonging service life while reducing maintenance costs. By meeting stringent specifications like MS15795-825 and ASME B18.21.1, it provides engineers with a trusted solution for maintaining structural integrity and safety in critical operations, from aerospace to marine installations.

Specification Summary & Compliance

This washer adheres to precise dimensional standards with an ID of 0.938", OD of 2.25", and thickness range of 0.136-0.192", designed for 7/8" screw sizes. It conforms to MS15795-825, NASM15795, and ASME B18.21.1 specifications, ensuring consistent quality and fit. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its safety for industrial use without hazardous substances.