S-98892A700 3/8"-24 MS21043-6 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision distorted thread center lock technology, preventing loosening in high-stress applications
• Enhanced corrosion protection with silver-plated A286 stainless steel construction, suitable for harsh industrial environments
• Precision thread engagement with Class 3B fine UNF threads ensuring reliable, secure fastening connections
• Integrated flange design with 0.62" diameter providing superior load distribution and eliminating the need for separate washers
• Industry-standard compliance meeting MS21043-6 specifications for guaranteed performance and interchangeability
• Environmental responsibility with full REACH and RoHS 3 compliance for sustainable manufacturing practices
• Optimized installation with external hex drive style allowing for standard tool compatibility and efficient assembly

Professional Applications & Engineering Value

This silver-plated A286 stainless steel flange locknut delivers exceptional performance in demanding industrial applications where vibration resistance and corrosion protection are critical. The distorted thread center lock mechanism actively counters rotational forces that cause conventional nuts to loosen, making it ideal for aerospace, automotive, and heavy machinery applications. The integrated flange distributes clamping force over a wider surface area (0.62" diameter), reducing point stress and preventing surface damage to components. Combined with Class 3B UNF fine threads, this nut maintains precise thread engagement even under extreme vibration, thermal cycling, and dynamic loading conditions. The silver plating on A286 stainless steel provides superior electrical conductivity while offering excellent resistance to oxidation and chemical exposure, ensuring long-term reliability in challenging environments.

Specification Summary & Compliance

This high-performance flange locknut features 3/8"-24 UNF fine threads with Class 3B thread fit for precision engagement and meets MS21043-6 military specifications. The nut maintains dimensional accuracy with a 0.62" flange diameter, 7/16" width, and 9/32" height. Manufacturing compliance includes REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring regulatory compliance for industrial applications worldwide.