Parker MSC128HBLSV-4-4 Barbed Hose Fitting 1/4 in

Product Description

The PARKER MSC128HBLSV-4-4 is a brass barbed hose fitting configured as a female connector with a hose barb on one end and a female swivel ball-end on the other. It accepts 1/4-inch ID hose via the barbed end and connects to a 1/4-inch NPSM threaded port on the female side. The swivel ball-end design allows the fitting to seat at an angle, reducing stress on the hose and thread assembly. Rated for service between -40 degrees F and 160 degrees F, this fitting suits low-pressure fluid and air line applications in HVAC, plumbing, and general mechanical systems. Plumbers, HVAC technicians, and pipefitters install it where a flexible hose must terminate at a fixed threaded port.

This fitting is used in residential and light commercial applications where 1/4-inch ID hose connects to a female-threaded NPSM port. Typical scenarios include condensate lines, instrument air tubing, low-pressure water supply connections, and similar small-bore fluid handling assemblies. The brass construction resists corrosion in wet environments and is compatible with water, light oils, and many common refrigerants at low working pressures. The hex head measures 0.625 inches across flats for standard wrench engagement during installation.

Key Features

• Hose barb x female swivel ball-end configuration allows angular positioning without loosening the thread connection
• Brass construction provides corrosion resistance in wet and humid service environments
• 1/4-inch NPSM thread standard for compatibility with common domestic pipe fittings
• Rated from -40 degrees F to 160 degrees F for year-round indoor and mechanical room use
• 0.625-inch hex head allows standard open-end or adjustable wrench installation
• Overall length of 1.5 inches suits tight-clearance installations

Compatibility

Designed for use with 1/4-inch ID flexible hose assemblies terminating at 1/4-inch NPSM female-threaded ports in low-pressure fluid and air line applications.

Installation Notes

Installation is performed by qualified plumbers or HVAC technicians following applicable IPC and IFGC guidelines for small-bore fittings. Shut off and depressurize the system before removing or installing any fitting. Hand-tighten the swivel ball-end onto the threaded port first, then snug with a wrench on the hex flats — do not over-torque brass threads. Secure the hose over the barb fully before applying any system pressure, and inspect for leaks at startup.