Parker 325HB-6-6N Barbed Tube Male Connector 3/8 Npt

Product Description

The PARKER 325HB-6-6N is a single-barb male connector fitting designed to join barbed tubing to a 3/8 inch NPT threaded port. Molded from nylon, this fitting is rated for working pressures up to 125 psi and handles temperatures from -40 degrees F to 200 degrees F, making it suitable for a range of fluid transfer and pneumatic applications. The barb diameter measures 3/8 inches and accommodates tubing with a 3/8 inch inside diameter and a 0.43 inch outside diameter. At 1.61 inches overall length and weighing just 0.01 pounds, it is a compact, lightweight solution. Compliance with FDA and NSF/ANSI 51 standards makes it appropriate for food-zone and potable-water-contact service.

This fitting is used in residential and light commercial plumbing, HVAC condensate lines, food and beverage equipment, and potable water distribution systems where a secure, leak-resistant barb-to-NPT transition is needed. Its white nylon construction resists corrosion and is well suited for installations where metal fittings would be inappropriate or cost-prohibitive. Plumbers, HVAC technicians, and equipment maintenance professionals commonly install this fitting in tubing runs that require a threaded male connection at one end and a barbed slip-on connection at the other.

Key Features

• Single-barb design for a secure grip on 3/8 inch ID tubing
• 3/8 inch NPT male thread for direct connection to standard threaded ports
• Nylon construction for corrosion resistance and lightweight handling
• Rated to 125 psi maximum working pressure
• Operating temperature range of -40 degrees F to 200 degrees F
• FDA compliant and NSF/ANSI 51 certified for food-zone and potable water applications

Compatibility

Designed as a standard replacement or new-installation barbed male connector for systems using 3/8 inch ID tubing with 3/8 inch NPT threaded ports, including potable water, food-service fluid transfer, and HVAC condensate applications requiring NSF/ANSI 51 compliance.

Installation Notes

This fitting is typically installed by plumbers or HVAC technicians. Shut off fluid supply and relieve system pressure before installation. Apply PTFE tape or an appropriate thread sealant to the NPT male threads before threading into the female port; hand-tighten first, then snug with a wrench — avoid overtightening nylon fittings, as this can crack the body. Push the tubing fully onto the barb until it seats against the fitting shoulder for a secure connection.