3/8" NPT to 3/8" NPT Male Fitting - 911-06

This 3/8" NPT to 3/8" NPT male fitting (part number 911-06) is a straight union designed for joining two 3/8" NPT female threaded ports securely. Manufactured from high-quality materials for durability and leak-free performance, this fitting is ideal for automotive, industrial, and custom plumbing applications. The precision-machined threads ensure a tight, reliable seal, making it suitable for a wide range of fluid transfer and connection needs. Its compact, straight design allows for easy installation in tight spaces.

Because both ends use 3/8" NPT male tapered pipe threads, this union is intended to join two female NPT ports — such as extending a line, tying two components together, or adapting between two ports that already use 3/8" NPT — rather than connecting directly to a hose or AN line. As with any NPT connection, thread sealant or PTFE tape on the male threads is recommended for a leak-free seal, since NPT fittings seal through thread engagement rather than an O-ring. Its compact, straight profile makes it a convenient building block for custom fuel, oil, coolant, or industrial plumbing runs where space is tight and a low-profile connection is preferred.