S-98017A252 0.14" ID x 0.438" OD NAS1149-CN542R; AN960-C5 Mil. Spec. Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional load distribution thanks to precise 0.14" ID and 0.438" OD dimensions, preventing surface damage and joint loosening
• Reliable mechanical performance with Rockwell B68 hardness, ensuring long-term durability under stress
• Perfect fit for No. 5 screws, providing secure fastening and reducing assembly time
• Compliance with stringent aerospace standards (NAS1149-CN542R and AN960-C5), guaranteeing quality and safety
• Environmental regulation adherence with RoHS 3 and REACH compliance, suitable for global supply chains
• Consistent thickness (0.037-0.047") for uniform pressure application and reliable performance in repetitive use

Professional Applications & Engineering Value

These passivated 18-8 stainless steel flat washers are engineered to address common industrial challenges such as corrosion, vibration-induced loosening, and material fatigue. The precise 0.14" ID and 0.438" OD dimensions ensure optimal load distribution for No. 5 screw sizes, reducing stress concentrations and extending the life of assembled components. Ideal for aerospace, automotive, and heavy machinery applications, the washers' Rockwell B68 hardness and passivated surface provide excellent resistance to wear and environmental factors, minimizing maintenance needs and downtime in critical operations.

Specification Summary & Compliance

This flat washer features inch system dimensions with an ID of 0.14", OD of 0.438", and thickness range of 0.037-0.047". It conforms to NAS1149-CN542R and AN960-C5 specifications, ensuring high precision and reliability. The washer is manufactured from passivated 18-8 stainless steel and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, supporting safe and sustainable industrial use.