S-98019A239 0.176" ID x 0.284" OD MS51496-P70 Mil. Spec. Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance through passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise dimensional accuracy with 0.176" ID and 0.284" OD ensuring perfect fit for No. 8 screws
• Enhanced load distribution with consistent 0.029-0.035" thickness for improved joint integrity
• Reliable hardness performance at Rockwell C20 for excellent durability under mechanical stress
• Military-grade compliance meeting MS51496-P70 specifications for critical applications
• Environmental regulation adherence with full RoHS 3 and REACH compliance for global supply chain integration
• Optimized surface protection through passivation treatment preventing galling and surface degradation

Professional Applications & Engineering Value

These passivated 18-8 stainless steel flat washers deliver exceptional engineering value in demanding applications where corrosion resistance and dimensional precision are paramount. The MS51496-P70 specification compliance ensures reliability in aerospace, military, and industrial equipment where failure is not an option. The passivation surface treatment creates a protective oxide layer that significantly enhances corrosion resistance compared to untreated stainless steel, solving common issues with pitting and chemical degradation in harsh environments. With precise 0.176" ID x 0.284" OD dimensions specifically engineered for No. 8 screw compatibility, these washers provide optimal load distribution while preventing joint loosening due to vibration or thermal cycling. The combination of Rockwell C20 hardness and controlled thickness tolerance makes them ideal for applications requiring consistent clamping force without material deformation.

Specification Summary & Compliance

This flat washer maintains precise dimensional tolerances with internal diameter of 0.176", outer diameter of 0.284", and thickness ranging 0.029-0.035". Manufactured from 18-8 stainless steel with passivation treatment and hardened to Rockwell C20, the washers conform to MS51496-P70 military specification requirements. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and unrestricted use in global markets.