3/8 MPT Pipe Nipple Black

The 3/8 MPT Pipe Nipple Black from FRAGOLA is a precision straight adapter fitting designed for fluid and gas transfer systems requiring male-to-male NPT connections. This compact coupling bridges two 3/8-inch NPT male ports, making it essential for hydraulic lines, fuel systems, air lines, and coolant circuits in automotive, industrial, and agricultural applications. The nipple's straightforward design eliminates unnecessary complexity while maintaining critical system integrity at connection points.

Manufactured from aluminum and finished in black anodized coating, this adapter combines lightweight durability with corrosion resistance—critical for systems exposed to moisture, vibration, and temperature cycling. The anodized finish protects the aluminum substrate from oxidation while maintaining the professional appearance expected in high-performance and industrial settings. The 3/8-inch NPT (National Pipe Thread) connection standard ensures compatibility with industry-standard fittings and hose assemblies, providing reliable, leak-free seals when properly installed with appropriate thread sealant or PTFE tape.

Technicians and builders working on custom hydraulic systems, fuel injection setups, or pneumatic networks will find this straight nipple indispensable for connecting hose assemblies, gauges, filters, and manifold blocks. Its compact 1.75-inch length allows installation in tight engine bays and equipment enclosures without sacrificing accessibility for maintenance. Whether you're rebuilding a classic vehicle's fuel system, assembling a mobile hydraulic platform, or repairing industrial machinery, the FRAGOLA 3/8 MPT Pipe Nipple Black delivers OEM-grade reliability at a practical price point.