S-90465A327 7/8"-9 x 2 1/2" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from durable brass construction, ensuring long-term reliability in harsh industrial environments
• Precise thread engagement with Class 2B fit and UNC coarse threading for secure, vibration-resistant connections
• Easy installation and removal through external hex drive design compatible with standard wrench tools
• Full-threaded design provides maximum thread contact area for enhanced load distribution and joint strength
• Regulatory compliance assurance with RoHS 3 and REACH standards for safe industrial applications
• Heavy-duty dimensional profile (1-1/4" width × 2-1/2" length) delivers robust coupling performance for demanding assemblies
• Right-hand threading compatibility with standard inch-system components for seamless integration

Professional Applications & Engineering Value

This brass coupling nut solves critical challenges in industrial assembly where corrosion resistance and reliable thread engagement are paramount. The 7/8"-9 UNC coarse threading with Class 2B fit ensures precise alignment and secure fastening in plumbing, hydraulic systems, and machinery applications where vibration resistance is essential. The fully threaded design maximizes surface contact between mating components, distributing mechanical loads evenly to prevent stress concentration. Brass material provides natural corrosion resistance in moist or chemical environments, while the external hex drive enables efficient installation in confined spaces. This coupling nut delivers engineering value by maintaining connection integrity in heavy-duty industrial applications where component failure is not an option.

Specification Summary & Compliance

Manufactured to precise inch system dimensions (1-1/4" width × 2-1/2" length) with Class 2B thread fit per UNC standards, ensuring dimensional accuracy and interchangeability. The fully threaded right-hand configuration with coarse thread spacing provides optimal engagement characteristics. Compliant with RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) regulations regarding substance restrictions, meeting current industrial safety and environmental standards.