Parker FB4MES6-HBLK Male Swivel Elbow 1/4in Od 3/8in Nptf

Product Description

The PARKER FB4MES6-HBLK is a push-to-connect male swivel elbow tube fitting designed for fluid and pneumatic systems requiring a reliable 90-degree directional change. Constructed from Kynar (PVDF) with a black finish, it accepts 1/4 inch OD tubing and threads into a 3/8 inch NPTF port. The FKM o-ring provides a secure seal across a wide range of process fluids and temperatures. Rated to 250 psi working pressure and a vacuum rating of 28 inches Hg, this fitting suits demanding plumbing, instrumentation, and light industrial applications. Licensed plumbers, HVAC technicians, and instrumentation specialists are the typical installers.

This fitting is suited for residential and commercial plumbing, HVAC refrigerant-side instrumentation lines, water treatment systems, and pneumatic control circuits where a compact male swivel elbow connection is required. The push-to-connect design allows fast, tool-free tube insertion while the swivel function lets installers align the fitting to existing port orientation without stressing the tubing. It is compatible with 1/4 inch OD semi-rigid and rigid tubing in systems calling for a 3/8 inch NPTF male thread entry point.

Key Features

• Push-to-connect design accepts 1/4 inch OD tubing without additional tooling
• Swivel elbow body allows port alignment after hand-tightening to reduce tubing stress
• Kynar (PVDF) construction offers strong chemical resistance for process fluid applications
• FKM o-ring sealing compatible with a broad range of aggressive fluids and refrigerants
• 250 psi working pressure rating and 28 inches Hg vacuum rating
• Black color finish for visual identification in multi-line installations

Compatibility

Designed as an OEM-style push-to-connect replacement fitting for systems using 1/4 inch OD tubing and 3/8 inch NPTF male thread ports.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or instrumentation mechanic. Depressurize and isolate the system fully before removing any existing fitting or inserting this one. Confirm the mating port thread type is NPTF before applying thread sealant; NPTF seals on the thread form itself but sealant may be required per applicable IPC or IFGC guidelines for the fluid service involved. Seat tubing fully into the collet until it bottoms out before returning the system to service.