Parker 125HBLSV-6-4 Barbed Hose Fitting 1/4 Npt X 3/8 Id

Product Description

The PARKER 125HBLSV-6-4 is a brass male connector barbed hose fitting designed to join a threaded NPT port to a flexible hose line. The fitting threads into a 1/4 inch NPT female port on one end and accepts 3/8 inch inside diameter hose on the barbed end, with a swivel NPT connection for easier installation alignment. Constructed from brass, it is suited for water, light hydraulic, and pneumatic service. Rated for temperatures from -40 degrees F to 160 degrees F, it fits within the working conditions typical of HVAC, plumbing, and light industrial fluid transfer applications. Licensed plumbers, HVAC technicians, and pipefitters install this type of fitting during both new installation and service work.

This fitting is used in residential and commercial applications where a rigid threaded port must transition to a flexible hose run. Common scenarios include connecting hose assemblies to equipment manifolds, condensate lines, water supply connections, and low-pressure pneumatic circuits. The swivel NPT end allows the fitting to rotate for alignment without twisting the hose, which reduces stress at the connection point. The hex head enables wrench tightening without marring the fitting body.

Key Features

• Brass construction for corrosion resistance in water and light fluid service
• 1/4 inch NPT male swivel thread for connection to standard female NPT ports
• 3/8 inch ID hose barb end secures flexible hose without additional fittings
• Swivel NPT design allows rotational alignment during installation
• Rated from -40 degrees F to 160 degrees F for broad temperature compatibility
• 0.6875 inch hex head accepts standard wrenches for controlled tightening

Compatibility

Designed as an OEM-style replacement or direct-install fitting for systems using 1/4 inch NPT female threaded ports with 3/8 inch inside diameter hose connections in plumbing, HVAC, and light industrial fluid transfer applications.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Shut off fluid or air supply and relieve system pressure before removing or installing any fitting. Apply thread sealant or PTFE tape to the male NPT threads per IPC and IFGC guidelines for the service fluid. Tighten using the hex head with an appropriate open-end or adjustable wrench — do not over-torque brass fittings, as the material is susceptible to thread damage.