Midland Industries 20733N Bulkhead Union 5mm Push-to-connect

Product Description

The MIDLAND INDUSTRIES 20733N is a metric nickel-plated brass bulkhead union designed to pass tubing through a panel or enclosure wall while maintaining a secure, leak-resistant connection on both sides. Both ends accept 5 mm outside-diameter tubing via push-to-connect fittings, allowing fast, tool-free assembly in tight spaces. The body features an M14 x 1 thread for panel mounting and a 0.663-inch hex for wrench engagement during installation. Rated from 0 to 290 psi and capable of operating across a temperature range of -4 to 176 degrees F, this fitting suits pneumatic tubing runs, instrumentation lines, and light fluid-transfer applications where a clean bulkhead penetration is required.

This fitting is suited for residential and commercial applications where metric push-to-connect tubing must pass through a cabinet wall, machine enclosure, or panel bulkhead. Typical installers include HVAC technicians running pneumatic control lines, equipment technicians working with metric tubing systems, and industrial maintenance professionals. The push-to-connect design on both ends speeds up field assembly and reduces the chance of installation error in production or service environments.

Key Features

• 5 mm push-to-connect on both ends for tool-free, fast tubing insertion
• M14 x 1 thread allows secure panel or bulkhead mounting
• 0.663-inch hex flat provides wrench access for torque-controlled tightening
• Nickel-plated brass construction resists corrosion in damp or industrial environments
• Rated to 290 psi working pressure for pneumatic and light fluid service
• Wide temperature range of -4 to 176 degrees F suits most indoor mechanical system environments

Compatibility

Designed as an OEM-style bulkhead fitting for metric push-to-connect tubing systems using 5 mm outside-diameter tubing with M14 x 1 panel-thread requirements.

Installation Notes

Installation is typically performed by HVAC technicians, instrumentation technicians, or industrial maintenance personnel. Depressurize and isolate the tubing circuit completely before removing or installing any fitting. Thread the body through the panel opening and secure the lock nut from the opposite side using a wrench on the hex flat. Insert tubing fully into each push-to-connect port until it seats, and verify a positive lock before returning the system to service.