This quick-connect hose coupling meets the standards for MIL-C-4109F, has a length of 2 1/16 inch, a maximum operating pressure of 500 psi @ 70 Degrees F and is silver, has an operating temperature of -40 Degrees to 250 Degrees F and is made of steel with a zinc-plated finish/coating. In addition, it has a ¼"-18 thread. Plus, it has an NPT connection type. This quick-connect hose coupling includes valve plus it is for use on hoses and pipes.