Midland Industries 660602 Brass Straight Connector 3/8 X 1/8

Product Description

The MIDLAND INDUSTRIES 660602 is a brass straight connector designed for push-to-connect tubing applications in fluid and pneumatic systems. It joins a 3/8-inch OD tube to a 1/8-inch female NPT threaded port in a single inline configuration. Rated to 150 psi and capable of handling temperatures from -40 to 200 degrees F, this fitting suits a wide range of compressed air, refrigeration, and general fluid service installations. The brass construction provides corrosion resistance and durability in both indoor and field service environments. Licensed plumbers, HVAC technicians, and pneumatic system installers commonly work with this type of fitting during equipment hook-up and service calls.

This connector is suited for residential and light commercial applications wherever a push-to-connect tube end must terminate into a female NPT threaded port. Typical install scenarios include equipment connections on compressed air lines, pneumatic controls, and fluid delivery systems requiring a reliable threaded-to-tube transition. The D.O.T. brass push-to-connect design allows for quick tube insertion without additional ferrules or compression sleeves, making it efficient for time-sensitive service work.

Key Features

• Push-to-connect end accepts 3/8-inch OD tubing without additional ferrules
• 1/8-inch FNPTF threaded port for direct connection to female NPT fittings
• 150 psi maximum working pressure rating
• Operating temperature range: -40 to 200 degrees F
• Brass construction for corrosion resistance in fluid and pneumatic service
• Compact profile at approximately 1.45 inches in length with 11/16-inch hex for wrench access

Compatibility

Designed as a D.O.T.-style push-to-connect brass fitting for systems accepting 3/8-inch OD tube connections with a 1/8-inch female NPT threaded port interface.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC or pneumatic systems technician. Depressurize and isolate the system completely before removing any existing fittings or inserting the new connector. Use an appropriately sized wrench on the 11/16-inch hex to seat the threaded end without over-torquing the fitting body. Ensure tubing is cut cleanly and squarely, and that it is fully inserted into the push-to-connect end until it seats, in accordance with applicable plumbing and mechanical codes.