Parker 325HB-10-6PP Barbed Male Connector 5/8 in 3/8 Npt

Product Description

The PARKER 325HB-10-6PP is a single-barb male connector designed to join barbed tubing to a threaded male NPT port in fluid handling and distribution systems. The fitting accepts tubing with a 5/8 inch inside diameter and a 0.66 inch outside diameter, and threads into a 3/8 inch NPT female port. Molded from black polypropylene, it carries FDA Compliant and NSF/ANSI 51 certifications, making it suitable for food-contact and potable-water-adjacent applications. It is rated to 125 psi maximum working pressure across a temperature range of 0 degrees F to 212 degrees F. Licensed plumbers, HVAC technicians, and refrigeration mechanics commonly install this fitting in low-pressure fluid circuits.

This connector is used in residential and light commercial plumbing, HVAC condensate lines, food and beverage equipment, and other fluid transfer systems where a barbed-to-NPT transition is needed. The single-barb design secures standard flexible tubing with a hose clamp or compression sleeve. Its polypropylene construction resists common cleaning agents and mild chemicals, and the NSF/ANSI 51 listing supports use in systems that contact food-grade fluids. Overall installed length is 1.61 inches, keeping the fitting compact in tight panel or equipment enclosures.

Key Features

• Single-barb design for 5/8 inch ID flexible tubing with 0.66 inch OD
• 3/8 inch NPT male thread for direct installation into standard female NPT ports
• Rated to 125 psi maximum working pressure
• Operating temperature range: 0 degrees F to 212 degrees F (0 degrees C to 100 degrees C)
• FDA Compliant and NSF/ANSI 51 certified for food-contact fluid applications
• Black polypropylene construction resists corrosion and common mild chemicals

Compatibility

Designed as an OEM-style replacement or new-installation fitting for fluid handling systems requiring a single-barb male connector with a 5/8 inch barb and 3/8 inch NPT male thread in polypropylene.

Installation Notes

Installation is performed by licensed plumbers or qualified HVAC technicians. Shut off all fluid supply and relieve system pressure before removing or installing any fitting. Apply thread sealant tape or approved pipe dope to the NPT threads before torquing into the female port; do not overtighten polypropylene fittings, as excess force can crack the body. Secure the barbed end with an appropriately sized hose clamp or insert fitting to prevent pull-off under pressure.