S-96345A220 6-32 MS21044C06, NASM21044 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert technology that maintains secure locking under dynamic loads
• Excellent corrosion resistance provided by 18-8 stainless steel construction for extended service life in harsh environments
• Reliable high-temperature performance with nylon insert rated up to 250°F without compromising locking capability
• Precise thread engagement with Class 3B fit UNC coarse threads ensuring consistent, secure fastening
• Military and aerospace compliance meeting MS21044C06 and NASM21044 specifications for critical applications
• Easy installation and removal with standard 5/16" external hex drive compatible with common tools
• Environmental compliance assurance with REACH and RoHS 3 certification for global industrial use

Professional Applications & Engineering Value

This 6-32 nylon insert lock nut delivers exceptional engineering value in applications where vibration-induced loosening poses significant reliability concerns. The 18-8 stainless steel construction provides inherent corrosion resistance, making it ideal for marine, chemical processing, and outdoor equipment applications. The UNC coarse thread configuration with Class 3B fit ensures rapid assembly while maintaining precise thread engagement, reducing installation time in high-volume manufacturing environments. The nylon insert locking mechanism creates consistent friction against the mating bolt, effectively dampening vibrations in machinery, automotive assemblies, and aerospace components. Certified to MS21044C06 and NASM21044 standards, this locknut meets rigorous military and aerospace specifications where failure is not an option, providing engineers with a reliable solution for critical fastening applications up to 250°F operating temperatures.

Specification Summary & Compliance

This external hex locknut features precise 6-32 UNC coarse threads with Class 3B thread fit for optimal engagement and consistent performance. The nut measures 5/16" across flats with a 3/16" height profile. Manufacturing and quality control adhere to MS21044C06 and NASM21044 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, meeting international environmental standards for industrial components.