The 3" #150 THD Hexagonal Plug – SP114 is a threaded pipe fitting designed to securely seal the end of a 3-inch pipe or fitting in a piping system. It features a hexagonal head for easy installation and removal using standard wrenches, ensuring a tight and reliable closure. Manufactured from durable 316 stainless steel, it provides excellent corrosion resistance and long-lasting performance in demanding environments. The plug is equipped with NPT (National Pipe Taper) threads compliant with ASME B1.20.1, ensuring compatibility with standard piping systems and dependable leak-tight sealing. With a Class 150 pressure rating and manufactured to MSS fitting standards, it is suitable for low to medium pressure applications and systems requiring ASME B31 code compliance. Commonly used for temporary or permanent port closure, it helps prevent leakage and reduce contamination by sealing unused connections in industrial, mechanical, plumbing, marine, and chemical processing applications. Order now for fast shipping and reliable, professional-grade performance.