S-91339A165 1/2"-13 UL 50 Sealing Nuts

Key Features & Benefits at a Glance

• Reliable sealing performance with silicone rubber seal that prevents leaks in demanding industrial environments
• Exceptional corrosion resistance thanks to 18-8 stainless steel construction for long service life in harsh conditions
• High-pressure capability withstands up to 6000 psi for heavy-duty applications requiring superior strength
• Wide temperature tolerance performs reliably from -100° to 400° F in extreme thermal environments
• Industry certification meets UL 50 standards for safety and performance verification
• Easy installation with standard external hex drive and coarse UNC threads for quick assembly
• Regulatory compliance with RoHS 3 and REACH environmental standards for global market acceptance

Professional Applications & Engineering Value

This 1/2"-13 UNC sealing nut delivers critical engineering solutions for industrial applications where fluid containment and pressure integrity are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance in chemical processing, marine, and outdoor environments, while the integrated silicone rubber seal maintains reliable performance across extreme temperature fluctuations from -100° to 400° F. The Class 2B thread fit ensures consistent engagement and proper sealing force distribution, making these sealing nuts ideal for hydraulic systems, pneumatic equipment, and pressure vessels where 6000 psi maximum pressure rating is essential. The external hex drive design facilitates straightforward installation with standard tools, reducing assembly time in manufacturing and maintenance operations.

Specification Summary & Compliance

This sealing nut features 1/2"-13 UNC coarse threads with Class 2B thread fit for consistent dimensional accuracy. Manufactured to meet UL 50 certification requirements and compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. The nut maintains precise dimensions of 3/4" width and 27/64" height for reliable performance in industrial sealing applications.