Norgren 104250638 Straight Push-to-connect Adapter 3/8 Npt

Product Description

The NORGREN 104250638 is a straight push-to-connect adapter fitting designed for general-purpose pneumatic and fluid line applications. It connects tubing with a 6 mm outside diameter to a male NPT threaded port using a push-to-connect mechanism on both tube ends. The fitting is machined from nickel-plated brass, offering corrosion resistance in typical shop-air and light fluid service environments. Rated to 260 psi maximum working pressure, it suits compressed air lines, pneumatic control circuits, and similar low-to-medium pressure systems. Licensed plumbers, pipefitters, and HVAC technicians install this type of fitting when transitioning between push-to-connect tubing runs and NPT-threaded ports on valves, manifolds, or equipment panels.

This adapter is suited for residential and light commercial installations where push-to-connect convenience is needed at an NPT interface. Typical scenarios include pneumatic control panels, compressed air distribution lines, and general-purpose fluid handling assemblies. The straight configuration makes it a direct inline adapter with no change in flow direction. It is rated for use across a broad temperature range, from 0 degrees F to 175 degrees F, covering most indoor mechanical room and shop environments. The fitting accepts 6 mm OD tubing on each push-to-connect end and uses an NPTF thread form for a secure, pressure-retaining connection at the male NPT port.

Key Features

• Push-to-connect tube ends accept 6 mm OD tubing without tools for quick field assembly
• Nickel-plated brass construction resists corrosion in compressed air and general fluid service
• 260 psi maximum working pressure rating suitable for standard shop-air and pneumatic control systems
• NPTF thread type provides a pressure-tight seal at the male NPT connection
• Nitrile O-ring material ensures compatibility with common pneumatic system media
• Operating temperature range of 0 degrees F to 175 degrees F covers most indoor mechanical applications

Compatibility

Designed for general-purpose use with 6 mm OD push-to-connect tubing and standard male NPT-threaded ports in pneumatic and fluid handling systems.

Installation Notes

Installation is performed by plumbers, pipefitters, or HVAC technicians working on pneumatic or fluid distribution lines. Depressurize and isolate the line completely before removing or installing any push-to-connect fitting. Insert tubing squarely to the tube stop to ensure full engagement of the collet and O-ring seal. Apply appropriate thread sealant or tape to the NPTF male thread per the system manufacturer and applicable plumbing code requirements before making up the threaded connection.