S-95154A190 5/8"-18 MS21044-N10 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with nylon insert locking that maintains secure fastening under dynamic loads
• Enhanced corrosion protection from cadmium yellow-chromate plating for extended service life in harsh environments
• High-temperature performance with nylon insert rated for continuous operation up to 250°F (121°C)
• Precision thread fit with Class 3B UNF fine threads ensuring reliable engagement and minimal backlash
• Military specification compliance meeting MS21044-N10 standards for quality and reliability assurance
• Easy installation and removal with standard external hex drive design for conventional tool compatibility
• Optimal load distribution through standard hex nut profile design for stable joint integrity

Professional Applications & Engineering Value

This 5/8"-18 UNF nylon insert lock nut delivers critical vibration resistance in demanding industrial and aerospace applications where loosening under dynamic loads poses significant safety risks. The cadmium yellow-chromate plated steel construction provides exceptional corrosion resistance, making it ideal for exposed environments while maintaining mechanical strength. The fine thread UNF configuration with Class 3B fit ensures precise engagement with mating components, reducing the risk of cross-threading and providing consistent clamping force. Engineered to MS21044-N10 specifications, this external hex locknut offers reliable performance in machinery, equipment assembly, and transportation systems where temperature fluctuations and vibration are constant challenges. The nylon insert maintains locking effectiveness through thermal cycles while allowing for reusable installation.

Specification Summary & Compliance

Manufactured to exacting MS21044-N10 military specifications with Class 3B thread fit for precision engagement. Features 5/8"-18 UNF fine threads with right-hand direction and standard hex profile (15/16" width, 3/4" height). The cadmium yellow-chromate plating provides corrosion protection while the nylon insert locking mechanism maintains performance up to 250°F maximum temperature. Complies with relevant industry standards for quality and performance in critical fastening applications.