S-91813A110 2-56 MS35649-222, Fed. Spec. FF-N-836 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection through cadmium yellow-chromate plating, extending service life in harsh environments
• Reliable thread engagement with Class 2B fit UNC coarse threads, ensuring consistent fastening performance
• Military-grade compliance meeting MS35649-222 and Fed. Spec. FF-N-836 standards for critical applications
• Optimized installation efficiency with standard external hex drive design for quick wrench access
• Robust steel construction providing high tensile strength and durability under mechanical stress
• Precision dimensional control with 3/16" width and 1/16" height for perfect fit in inch-system assemblies
• Universal compatibility with right-hand thread direction matching most industrial equipment requirements

Professional Applications & Engineering Value

This MS35649-222 compliant hex nut delivers exceptional engineering value through its cadmium yellow-chromate plated steel construction, specifically engineered to combat corrosion in demanding industrial environments. The UNC 2-56 coarse thread configuration with Class 2B fit provides superior vibration resistance and prevents loosening in high-stress applications, while the standardized 3/16" width ensures compatibility with common wrench sizes. Ideal for aerospace, military hardware, and heavy machinery assemblies, this external hex nut solves critical fastening challenges where corrosion resistance, precise thread engagement, and regulatory compliance are paramount. The right-hand thread design facilitates straightforward installation in conventional industrial systems, reducing assembly time and maintenance costs.

Specification Summary & Compliance

This hex nut maintains Class 2B thread fit per UNC standards with precise 2-56 coarse thread spacing and right-hand thread direction. Dimensional specifications include 3/16" width across flats and 1/16" height. The component fully complies with MS35649-222 and Fed. Spec. FF-N-836 requirements, manufactured from cadmium yellow-chromate plated steel for enhanced corrosion protection. Meets industry standards for inch-system fasteners and contains materials compliant with RoHS and REACH environmental directives.