Norgren C24250518 Push-to-connect Adapter 5/16 Od 1/8 Nptf

Product Description

The NORGREN C24250518 is a straight push-to-connect adapter fitting that joins a 5/16-inch OD tube to a 1/8-inch male NPTF threaded port. Constructed from brass, it is rated for up to 150 psi maximum working pressure and handles temperatures from 0 degrees F to 175 degrees F. A nitrile O-ring provides the primary tube seal at the push-to-connect end. This fitting is well suited for pneumatic and fluid-transfer lines in HVAC, refrigeration controls, and light industrial plumbing applications. It is installed by plumbers, HVAC technicians, and pipefitters working on low-pressure compressed air or fluid lines.

This adapter is appropriate for residential and light commercial systems where a 5/16-inch OD tube must terminate at a 1/8-inch NPTF male port. Common install scenarios include instrument air lines, control tubing, and pneumatic control circuits. The push-to-connect end accepts the tube without tools, while the NPTF threaded end seals directly against a mating female port. The fitting is sold individually and is suitable for both new installation and service replacement work.

Key Features

• Straight push-to-connect adapter with 5/16-inch OD tube inlet and 1/8-inch NPTF male outlet
• Brass construction for corrosion resistance and reliable sealing in air and fluid service
• Nitrile O-ring at the push-to-connect end ensures a positive tube seal
• Rated to 150 psi maximum working pressure
• Wide temperature range: 0 degrees F to 175 degrees F
• Overall length of 1.11 inches for compact inline installation

Compatibility

Designed as an OEM-style replacement or service fitting for pneumatic and fluid-transfer lines requiring a 5/16-inch OD push-to-connect tube connection to a 1/8-inch NPTF male threaded port.

Installation Notes

Depressurize and isolate the line before servicing any push-to-connect fitting. NPTF threads are designed to seal on the threads themselves; apply thread sealant only if required by the system manufacturer or applicable code. Insert the tube squarely and fully to the tube stop to ensure the O-ring and collet engage properly. Installation should be performed by a qualified HVAC technician, plumber, or pipefitter in accordance with applicable codes.