S-44665K331 4.026" ID x 4 1/2" OD x 6 1/2" Long ASTM B241 Standard-Wall Aluminum Threaded Pipe Nipples and Pipe

Key Features & Benefits at a Glance

• Superior corrosion resistance with 6061 aluminum construction for extended service life in demanding environments
• Leak-proof performance thanks to seamless manufacturing that eliminates weak points and potential failure areas
• Universal compatibility with air, oil, and water systems using aluminum fittings and flanges rated for Class 150/125 applications
• Precise NPT threading on both ends ensures secure connections and easy installation without cross-threading issues
• Optimal flow characteristics with 4.026" ID maintaining efficient media transfer while 0.237" wall provides structural integrity
• Regulatory compliance with RoHS 3 standards ensures environmental responsibility and global market acceptance
• ASTM B241 certification guarantees material quality and performance consistency for industrial applications

Professional Applications & Engineering Value

This 4" Schedule 40 aluminum threaded pipe nipple delivers exceptional engineering value through its 6061 aluminum composition and seamless construction, specifically addressing industrial fluid handling challenges. The NPT male threading on both ends provides reliable, leak-resistant connections for compressed air systems, hydraulic oil lines, and water distribution networks. Engineered to withstand corrosion and mechanical stress, this heavy-duty aluminum nipple eliminates galvanic corrosion concerns when paired with aluminum fittings and flanges. Its ASTM B241 compliance ensures consistent wall thickness and dimensional accuracy, critical for maintaining system pressure integrity in industrial plants, manufacturing facilities, and processing operations where reliability is paramount.

Specification Summary & Compliance

This threaded pipe nipple features precise NPT thread specifications with standard industrial tolerances for reliable mating connections. Manufacturing adheres to ASTM B241 standards for aluminum alloy pipe, ensuring dimensional accuracy with 4.026" ID, 4 1/2" OD, and 0.237" wall thickness. The product is fully RoHS 3 (2015/863/EU) compliant, meeting international environmental regulations for hazardous substance restrictions. Designed for use with aluminum fittings (Class 150) and flanges (Class 125), this Schedule 40 pipe nipple maintains industry-standard specifications for pressure-rated applications.