Question from total noob

[Omega88]

Hello, I am a total noob when comes to plumbing and subject surrounding it.
Today this part has fell out from my kitchen tap. I have no idea how you call this part and I have no clue what to type in google to find a spare for it.
Could someone tell me what is the name of the part, please?

Thank You

 

[Burnerman]

It looks like an 'aerator' that lives in the end of the mixer tap spout. Am I close?
John

 

[Omega88]

It looks like an 'aerator' that lives in the end of the mixer tap spout. Am I close?
John

Make sense!

Thank you very much John

 

[Burnerman]

These bits often get spat out into a kettle
The larger black part is often screw threaded, and that holds in the metal and other plastic piece.
Be lucky!
John

 

[Omega88]

Hmmm, the black part has no thread on it :O. There is no thread inside of the tap, just a rubber hose with metal spring on it - hot water from what I can tell. Ancient tap?!

 

[Burnerman]

Maybe a picture of the tap would help, but its an unknown one to me......I'd guess that the piece on the right would pass through the aerator on the left and then connect into the piece of hose inside the tap spout, maybe holding things in place at the same time. I can't understand the function of the metal part though!
John