S-95307A400 10-32 MS21042-3 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision distorted thread locking technology, ensuring secure fastening in high-stress environments.
• Enhanced corrosion protection with cadmium yellow-chromate plating, extending service life in harsh industrial conditions.
• Maximum holding power provided by the Class 3B fine thread fit, delivering reliable performance in demanding applications.
• Easy installation and removal with standard external hex drive design, reducing assembly time and labor costs.
• Built-in flange eliminates need for separate washers, simplifying inventory and providing a larger bearing surface for improved load distribution.
• Compliance with MS21042-3 specifications, ensuring consistent quality and reliability for aerospace and industrial use.
• Right-hand UNF fine threads offer precise engagement and resistance to loosening under dynamic loads.

Professional Applications & Engineering Value

This 10-32 UNF flange lock nut is engineered to address critical challenges in vibration-prone and high-performance environments. The distorted thread locking mechanism creates consistent interference fit, effectively preventing spontaneous loosening caused by dynamic stresses in machinery, automotive, and aircraft applications. Made from cadmium yellow-chromate plated steel, it provides excellent corrosion resistance, reducing maintenance frequency and replacement costs. The integrated flange design distributes clamping force evenly, minimizing surface damage and improving joint integrity. These features make it ideal for assembly lines, precision equipment, and safety-critical systems where reliability is paramount. Its compliance with MS21042-3 standards ensures it meets rigorous industry requirements for quality and performance.

Specification Summary & Compliance

This flange lock nut features a 10-32 UNF fine thread with Class 3B thread fit for high precision and strength. It adheres to MS21042-3 specifications, confirming its suitability for aerospace and industrial use. Dimensions include a 0.33" flange diameter, 0.03" flange thickness, 1/4" width, and 3/16" height, ensuring accurate integration into assemblies. The right-hand thread direction and external hex drive facilitate standard installation. The product meets industry standards for performance and is manufactured with materials compliant with RoHS and REACH environmental regulations, supporting safe and sustainable operations.