S-95154A150 1/4"-28 MS21044-N4 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision-engineered nylon insert technology that prevents loosening under dynamic loads
• High-temperature performance maintaining secure locking capabilities up to 250°F (121°C) in demanding industrial environments
• Exceptional corrosion protection with cadmium yellow-chromate plating that extends service life in harsh conditions
• Precision thread engagement with Class 3B fit ensuring reliable, consistent performance and reduced risk of cross-threading
• Optimized installation efficiency through standard external hex drive design compatible with common wrenching tools
• Industry compliance assurance meeting MS21044-N4 specifications for quality and reliability in critical applications
• Fine thread advantage with 1/4"-28 UNF configuration providing enhanced clamping force distribution and superior holding power

Professional Applications & Engineering Value

This nylon insert locknut delivers exceptional engineering value by solving critical vibration-induced loosening challenges in industrial and aerospace applications. The cadmium yellow-chromate plated steel construction provides superior corrosion resistance while maintaining mechanical strength under stress. The precision UNF fine threads with Class 3B fit ensure consistent engagement and reliable performance in high-vibration environments such as machinery, automotive assemblies, and aircraft systems. The nylon insert creates consistent friction that maintains clamp load without damaging mating threads, making it ideal for applications requiring repeated disassembly and reassembly. With temperature resistance up to 250°F and compliance with MS21044-N4 standards, this locking solution offers dependable performance where fastener failure is not an option.

Specification Summary & Compliance

This industrial locknut features precision 1/4"-28 UNF fine threads with Class 3B thread fit for superior engagement and consistent performance. The external hex drive configuration (7/16" width) ensures compatibility with standard installation tools. Manufactured to meet MS21044-N4 specifications, this cadmium yellow-chromate plated steel locknut maintains dimensional accuracy and mechanical properties required for critical applications. The product complies with relevant industrial standards for quality and performance assurance in demanding operating conditions.