Adapter: male pvc pipe to female metal outdoor faucet
It sounds like you're looking for an extender of sorts. I've used fittings like that which also change pipe size at the same time: for example, an adapter with 1/2&quot; female thread going to 1/4&quot; male thread. These are usually brass. I haven't seen one in which the pipe size does not change. You'd probably have to use a regular threaded coupler followed by a nipple of whatever length suits you.
The real problem, though, is that you have a plastic-to-metal threaded connection that's leaking -- is that right? You don't need extra fittings to fix this. All you need is some pipe joint compound, sometimes called &quot;pipe dope.&quot; Choose one that includes PTFE (Teflon). Disassemble the leaking joint, dry the male thread, apply the compound, reassemble. Wipe away the excess compound and test for leaks. Chances are high this is all you'll need.