S-96345A230 8-32 MS21044C08, NASM21044 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking mechanism that maintains secure fastening in high-motion environments
• Excellent corrosion resistance provided by 18-8 stainless steel construction for long-lasting performance in harsh conditions
• High-temperature capability with nylon insert rated to 250°F (121°C) for reliable operation in demanding thermal environments
• Precision thread engagement with Class 3B thread fit ensuring consistent, reliable fastening in critical applications
• Industry-standard compliance meeting MS21044C08 and NASM21044 specifications for aerospace and industrial applications
• Easy installation and removal with standard external hex drive design compatible with common wrench tools
• Environmental compliance with RoHS 3 and REACH regulations for safe use across global markets

Professional Applications & Engineering Value

This 8-32 UNC nylon insert locknut delivers exceptional engineering value in applications where vibration-induced loosening poses significant reliability concerns. The 18-8 stainless steel construction provides inherent corrosion resistance, while the precision Class 3B thread fit ensures consistent engagement with mating components. The nylon insert locking mechanism creates constant friction against the bolt threads, maintaining clamp force without requiring additional locking devices. This external hex locknut is particularly valuable in aerospace assemblies, industrial machinery, and electronic enclosures where space constraints and vibration are constant challenges. The coarse UNC thread profile facilitates quick installation while the 250°F temperature rating ensures performance stability across diverse operating environments.

Specification Summary & Compliance

This locknut features 8-32 UNC coarse threads with Class 3B thread fit for precision applications, manufactured to MS21044C08 and NASM21044 specifications. The external hex design measures 11/32" across flats with a height of 9/32". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no substances of very high concern above threshold limits. The right-hand thread direction and standard hex nut profile ensure compatibility with existing fastener systems and tooling.