S-95307A801 2-56 MS21042L-02 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread locking technology, ensuring reliable performance in high-stress environments.
• Enhanced corrosion protection with cadmium yellow-chromate plating, extending service life in harsh industrial conditions.
• Precise thread engagement with Class 3B thread fit, minimizing the risk of cross-threading and improving assembly efficiency.
• Integrated flange design eliminates the need for a separate washer, providing a larger bearing surface and reducing installation time.
• High-strength steel construction offers durability and load distribution, ideal for heavy-duty applications.
• Compliance with MS21042L-02 standards ensures consistent quality and reliability for aerospace and industrial use.
• External hex drive allows for easy installation and removal with standard tools, enhancing maintenance accessibility.

Professional Applications & Engineering Value

This 2-56 UNC flange locknut is engineered to address critical challenges in demanding sectors such as aerospace, automotive, and industrial machinery. The distorted thread locking mechanism effectively counters loosening caused by vibrations and dynamic loads, a common failure point in high-performance systems. Made from cadmium yellow-chromate plated steel, it provides robust corrosion resistance, essential for operations in humid or chemically aggressive environments. The integrated flange design distributes clamping force evenly, reducing surface damage and improving joint integrity. With a coarse UNC thread and precise Class 3B fit, it ensures quick, secure fastening in assemblies where reliability is paramount, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This product adheres to MS21042L-02 specifications, with a 2-56 UNC coarse thread and Class 3B thread fit for high precision. It meets industry standards for dimensional accuracy, including a flange diameter of 0.167" and height of 3/32". The cadmium yellow-chromate plating complies with environmental regulations such as RoHS and REACH, ensuring safe usage. Manufactured to consistent quality controls, it is suitable for applications requiring reliable, vibration-resistant fastening solutions.