RS PRO 57550 Series Push-in Fitting to Push In 4 mm, Threaded-to-Tube Connection Style

Introducing metal push in fittings from RS PRO, a range of robust and high performance fittings and adapters ideal for connecting pipes, tubes and hoses in a wide range of pneumatic industrial applications. The push in fittings feature a nickel plated brass construction with steel AISI 301 clamping washer, offering excellent durability and reliability regardless of the environment. The high-quality seal ensures a secure and air tight connection between the tube and fitting, even with high vacuum and pressure applications. The RS PRO metal push in fittings range are easy to connect and disconnect quickly and efficiently, offering exceptional quality and performance in a variety of sizes and styles to suit your needs.

Metal push in fittings and connectors are compact yet durable adapters designed to connect pipes, tubes and hoses with ease in pneumatic industrial applications. They are perfectly suited to applications that require a fitting with resistance to heavy vibrations and abrasions. The simple push in design allows pipes and tubes to be connected with ease, allowing for quick and efficient installation. Push in fittings are available in a wide range of shapes and sizes and are used in areas such as:

• Robotics


• Automotive Welding


• Railway maintenance


• Compressed air circuits


• Water cooling systems

1907/2006 REACH, 2011/65/CE RoHS, PED 2014/68/UE, ISO 14743:2004

The RS PRO range of pneumatic push in fittings with universal short threads feature a unique thread, made by cutting a tapered thread shorter and with a seal. This unique and versatile thread ensures that the fitting is compatible with BSPT ISO 228 (tapered), BSPP ISO7 (parallel) and NPT threads. Rather than purchasing multiple fittings with different threads, RS PRO universal short thread fittings will fit either of these thread types, making them highly cost efficient and robust.

RS PRO metal push in fittings are compatible with pressures from - 0.99 bar (-0.099 MPa) 20 bar (2.0 MPa).

RS PRO metal push in fittings are ideal for use with a range of tubes including PA6, PA11, PA12, Polyethylene, Polyurethane, PTFE, FEP.