Legris 3699 04 52 Male Elbow Tube Fitting M6x1 4mm

Product Description

The LEGRIS 3699 04 52 is a push-to-connect male elbow tube fitting designed for connecting 4mm outside diameter tubing to an M6x1 metric male thread port. Constructed from nickel-plated brass, this fitting handles both liquid and gas service up to 435 psi working pressure across a wide temperature range of -4 degrees F to 302 degrees F. The push-to-connect design allows fast, tool-free tube insertion while the elbow geometry routes tubing at a 90-degree change of direction in tight spaces. It is installed by licensed plumbing, pneumatic, or instrumentation technicians working on compressed air, fluid control, or process line applications.

This fitting is suited for residential and light commercial pneumatic and fluid systems where compact metric connections are required. The M6x1 thread mates with metric-threaded ports found on solenoid valves, manifolds, cylinders, and instrumentation fittings. The 4mm tube OD is common in European-specification pneumatic control and sensing lines. The FKM o-ring seals provide chemical compatibility across a broad range of fluids and gases, making this fitting appropriate for both air and compatible liquid media in instrumentation and automation assemblies.

Key Features

• Push-to-connect design for fast, tool-free 4mm OD tube insertion and secure retention
• Nickel-plated brass construction for corrosion resistance and durability
• M6x1 metric male thread for direct connection to metric-ported components
• 435 psi maximum working pressure rated for demanding pneumatic and fluid service
• FKM o-ring material compatible with a wide range of liquids and gases
• Compliant with RoHS, ATEX, PED, REACH, FDA 21CFR, and ISO 14743 standards

Compatibility

Designed as an OEM-style push-to-connect replacement fitting for pneumatic and fluid control systems using 4mm OD tubing and M6x1 metric male thread ports.

Installation Notes

Installation is performed by qualified plumbing, pneumatic, or instrumentation technicians. Depressurize and isolate the line completely before removing or installing any fitting. Ensure tubing is cut cleanly and squarely and that the tube end is free of burrs before insertion to guarantee a leak-free seal. Verify thread engagement and o-ring seating before returning the system to service pressure.