Parker FB4MC2-HBLK Push-to-connect Fitting 1/4 Od

Product Description

The PARKER FB4MC2-HBLK is a push-to-connect tube fitting connector designed for fast, tool-free tubing connections in fluid and pneumatic systems. Built from Kynar (PVDF), this fitting handles up to 250 psi and accepts 1/4 inch OD tubing with a 1/8 inch NPTF male thread. The black color and FKM O-ring construction make it well suited for chemically aggressive environments where standard acetal or nylon fittings fall short. Licensed plumbers, HVAC technicians, and industrial pipefitters install this type of fitting in instrumentation lines, chemical feed systems, and low-pressure pneumatic circuits.

This connector is used in applications where a straight inline connection is needed between 1/4 inch OD tubing and a 1/8 inch NPTF threaded port. Kynar construction provides strong resistance to chlorinated solvents, acids, and UV exposure, making this fitting appropriate for water treatment, chemical dosing, and laboratory plumbing installations. The push-to-connect design eliminates the need for compression sleeves or ferrule tools, reducing installation time on the bench or in the field.

Key Features

• Kynar (PVDF) body provides excellent chemical and UV resistance
• Accepts 1/4 inch OD tubing with a simple push-to-connect mechanism — no ferrules or tools required
• 1/8 inch NPTF male thread for a pressure-tight mechanical seal
• FKM O-ring rated for chemically aggressive media
• Rated to 250 psi working pressure
• Vacuum rated to 28 in-Hg for low-pressure suction applications

Compatibility

Designed as an OEM-style replacement or new-installation connector for systems using 1/4 inch OD tubing with 1/8 inch NPTF threaded ports in pneumatic, fluid, or chemical service lines.

Installation Notes

Installation is performed by licensed plumbers or qualified technicians working on pneumatic or fluid systems. Depressurize and isolate the line completely before disconnecting or installing any push-to-connect fitting. Ensure tubing is cut square and deburred before insertion to achieve a proper seal. NPTF threads are self-sealing by design; consult applicable plumbing or pneumatic system codes for any additional sealant requirements in your jurisdiction.