(5 PCS) Air Push In Fitting Male Straight Connector Tube OD 1/2 X NPT 1/2 USA $13 Dimensions Tube Size 1/2" Pipe Size (Fittings) 3/8" USA Sealing Push-to-Connect Tube Fitting - 1/2 in Compatible Tube Outer Diameter, BSPT Male Straight, Male NPT/BSPT to Metric/Inch Tube, Nylon, Standard/Adapter Also known as one touch fittings, these tube fittings are designed to slide into the fitting with an internal grasping ring holding it in place Intended for low pressure applications and for use with plastic and soft metal tubing Nylon is well suited for air applications. Body Style Male Straight Compatible Tube Outer Diameter 1/2 in O-Ring Material Buna-N Material Nylon Maximum Pressure 350 psi Max Pressure 350 psi Maximum Vacuum 28 in. of Hg @ 72 F O Ring Material Buna-N Ring Material Stainless Steel Shape Straight Thread Material Nickel-Plated Brass Thread Type BSPT Male Working Pressure 145 psi