39113 - 1/4 Inch NPT Female Brass Pipe Coupling

Precision Brass Coupling for Industrial Applications

The Forney 39113 is a high-quality brass coupler designed to facilitate the connection of two pipes or fittings with 1/4-inch male NPT threads. Manufactured from solid brass stock, this fitting provides exceptional durability and resistance to corrosion, making it an ideal choice for a wide variety of industrial, automotive, and workshop environments. Unlike ferrous metals, brass does not rust when exposed to moisture, ensuring a long service life even in compressed air lines where condensation is prevalent.

The unit features a straight body configuration with a hexagonal exterior profile. This hex shape is critical for professional installation, allowing technicians to apply the necessary torque using a standard open-end or adjustable wrench without damaging the fitting surface. The internal threads are precision-machined to National Pipe Taper (NPT) standards, ensuring a tight, leak-free seal when paired with quality thread sealant or PTFE tape. The tapered nature of NPT threads allows the flanks of the threads to compress against each other, creating a mechanical seal that withstands pressure.

In the context of MRO (Maintenance, Repair, and Operations), the Forney 39113 is a versatile component. It is frequently employed in pneumatic systems to extend air hoses, connect regulators to manifolds, or adapt different segments of hard piping. Its material properties also make it suitable for water lines, oil lines, and inert gas delivery systems commonly found in welding operations. The brass construction offers a degree of spark resistance compared to steel, which can be a safety factor in certain hazardous environments.

Reliability is paramount in fluid and gas transfer. This coupler undergoes rigorous quality control to ensure thread consistency and wall thickness uniformity. Whether you are building a custom manifold for a welding station or simply repairing a broken air compressor line, the Forney 39113 provides the structural integrity and sealing performance required for professional results.