S-96345A310 5/16"-18 MS17830-5C, NASM17830 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking mechanism that maintains secure fastening under dynamic loads
• Exceptional corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• High-temperature reliability with nylon insert rated for continuous service up to 250°F (121°C)
• Precision thread engagement with Class 3B thread fit ensuring consistent, reliable locking performance
• Industry-standard compliance meeting both MS17830-5C and NASM17830 specifications for aerospace and industrial applications
• Environmental regulation adherence with full REACH and RoHS 3 compliance for global market acceptance
• Easy installation and removal with standard external hex drive design compatible with common tools

Professional Applications & Engineering Value

This 5/16"-18 UNC nylon insert locknut delivers critical vibration resistance in demanding industrial environments where loosening under dynamic loads poses significant safety risks. The 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for applications exposed to moisture, chemicals, or outdoor elements. The nylon insert locking mechanism creates consistent friction against mating threads, maintaining clamp load without damaging threads during repeated installations. Engineered to MS17830-5C and NASM17830 standards, this locknut meets rigorous aerospace and military specifications, ensuring reliability in critical assemblies from machinery and equipment to transportation systems. The coarse UNC thread profile facilitates quick installation while the Class 3B thread fit guarantees precise engagement for optimal locking performance.

Specification Summary & Compliance

This precision locknut features 5/16"-18 UNC coarse threads with Class 3B thread fit for superior engagement accuracy. Manufactured to exacting MS17830-5C and NASM17830 specifications, ensuring consistent quality and performance. The external hex design provides standard 1/2" across flats dimension with 11/32" height profile. Fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, meeting current environmental standards for industrial components.