S-98892A300 8-32 MS21043-08 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread center lock technology that maintains secure fastening under extreme conditions
• Exceptional corrosion and high-temperature performance with silver-plated A286 stainless steel construction for extended service life
• Precision thread engagement with Class 3B thread fit ensuring reliable, consistent performance in critical applications
• Integrated flange design eliminates need for separate washers while providing superior load distribution
• Standard external hex drive enables easy installation with common tools while maintaining secure locking capability
• Full regulatory compliance with REACH and RoHS 3 standards for global industrial applications
• MS21043-08 specification compliance guarantees aerospace-grade quality and reliability

Professional Applications & Engineering Value

This 8-32 UNC flange lock nut delivers critical performance advantages for demanding industrial and aerospace applications where vibration resistance and reliability are paramount. The silver-plated A286 stainless steel construction provides exceptional corrosion resistance while maintaining strength at elevated temperatures, making it ideal for harsh environments. The distorted thread center lock mechanism effectively counters vibrational loosening without compromising installation torque or requiring additional locking elements. The integrated flange design distributes clamping pressure over a wider surface area (0.29" diameter), reducing stress concentration and preventing surface damage. These engineered features make this MS21043-08 compliant locknut particularly valuable in aerospace assemblies, industrial machinery, and precision equipment where failure is not an option.

Specification Summary & Compliance

This flange lock nut features 8-32 UNC coarse threads with Class 3B thread fit precision, ensuring tight tolerances and reliable engagement. The distorted thread center lock technology provides permanent locking capability without compromising thread integrity. Manufacturing complies with MS21043-08 specifications for aerospace applications. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, meeting the latest regulatory requirements for industrial components. Dimensions include 7/32" width, 3/16" height, 0.29" flange diameter, and 0.03" flange thickness for standardized installation.