S-90215A031 3/8"-16 UL 50 Sealing Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with nickel-plated brass construction for extended service life in harsh environments
• Reliable high-pressure sealing up to 6000 psi prevents system failures and fluid leaks
• Exceptional temperature tolerance from -100° to 400° F maintains seal integrity across extreme operating conditions
• Precision Class 2B thread fit ensures consistent sealing performance and easy installation
• UL 50 certification guarantees compliance with rigorous safety and performance standards
• Durable silicone rubber seal provides long-lasting, flexible sealing against moisture and contaminants
• Standard external hex design enables quick installation with common tools while maintaining secure fastening

Professional Applications & Engineering Value

This nickel-plated brass sealing nut delivers critical pressure containment and environmental protection for demanding industrial applications. The combination of corrosion-resistant brass core and high-temperature silicone rubber seal solves common failure points in hydraulic systems, pneumatic controls, and fluid handling equipment. Engineered with UNC coarse threads and Class 2B fit, it maintains consistent sealing performance under vibration and thermal cycling, making it ideal for heavy-duty industrial machinery, process equipment, and outdoor installations where reliable sealing is paramount to operational safety and efficiency.

Specification Summary & Compliance

This 3/8"-16 UNC sealing nut features Class 2B thread fit with coarse thread spacing for optimal engagement. Manufactured to meet UL 50 standards for sealing performance and constructed from nickel-plated brass with silicone rubber sealing element. Compliant with RoHS 3 (2015/863/EU) under exemption 6(c) and REACH (EC 1907/2006) regulations. Dimensions include 5/8" width and 7/32" height, designed for standard external hex drive installation.