S-95307A804 8-32 MS21042L-08 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread locking technology, ensuring secure fastening in high-motion environments
• Enhanced corrosion protection with cadmium yellow-chromate plating, extending service life in harsh industrial conditions
• Precision Class 3B thread fit for reliable engagement and reduced risk of cross-threading during installation
• Integrated flange design distributes clamping force over a wider area (0.29" diameter), minimizing surface damage and improving joint integrity
• Pre-applied lubricant facilitates smooth installation and consistent torque application, reducing assembly time
• Coarse UNC thread spacing enables quick assembly and disassembly while maintaining strong holding power
• MS21042L-08 compliance guarantees consistent quality and interchangeability for military and aerospace applications

Professional Applications & Engineering Value

This 8-32 UNC flange lock nut delivers critical performance where vibration-induced loosening threatens operational safety. The distorted thread locking mechanism creates persistent friction against mating threads, eliminating the need for secondary locking devices. Manufactured from cadmium yellow-chromate plated steel, it provides sacrificial corrosion protection while maintaining electrical conductivity. The integrated external hex drive and 0.29" flange diameter work synergistically to prevent rotation during torque application, making it ideal for industrial machinery, automotive assemblies, and aerospace frameworks requiring Class 3B thread precision. The pre-lubricated design ensures consistent clamp load distribution while protecting against galling in coarse thread applications.

Specification Summary & Compliance

This flange lock nut maintains Class 3B internal thread tolerances per Unified National Coarse (UNC) specifications, with 8-32 thread size and right-hand orientation. Manufacturing conforms to MS21042L-08 standards for dimensional consistency and performance verification. The 0.29" flange diameter and 3/16" height provide standardized proportions for interchangeability. Compliant with RoHS and REACH environmental directives, the cadmium plating meets corrosion resistance requirements while the distorted thread geometry ensures locking performance without compromising ASME/ANSI thread form standards.