S-95307A806 1/4"-28 MS21042L-4 Flange Nuts
Flange Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Secure vibration-resistant locking through distorted thread technology, preventing loosening in high-stress environments
- Integrated flange eliminates need for separate washers, reducing assembly time and component count
- Superior corrosion protection with cadmium yellow-chromate plating for extended service life in harsh conditions
- Precision Class 3B thread fit ensures consistent engagement and reliable torque performance
- Pre-applied lubricant facilitates smooth installation and prevents galling during tightening
- Military-standard compliance (MS21042L-4) guarantees consistent quality for critical applications
- External hex drive design provides standard tool compatibility and straightforward installation
Professional Applications & Engineering Value
This flange lock nut combines distorted thread locking technology with cadmium yellow-chromate plated steel construction to solve critical fastening challenges in demanding environments. The integrated flange design distributes clamping force over a wider surface area (0.42" diameter), reducing point stress and preventing surface damage to assembled components. The UNF fine thread configuration (1/4"-28) provides superior resistance to vibration-induced loosening compared to coarse threads, while the Class 3B thread fit ensures precise engagement with mating components. Particularly valuable in aerospace applications and heavy machinery where vibration resistance and corrosion protection are paramount, this nut maintains clamping force integrity under dynamic loading conditions.
Specification Summary & Compliance
Manufactured to exact MS21042L-4 specifications with Class 3B thread fit tolerance for precision engagement. Features UNF fine threads (1/4"-28) with right-hand orientation and external hex drive (5/16" width). The cadmium yellow-chromate plating provides corrosion resistance while meeting relevant industrial standards for aerospace and military applications. Includes factory-applied lubricant for optimal installation performance and thread protection.
