Mystery Aircraft Part?

[smokie]

Hello All ,

Can some kind knowledgeable Soul please put me out of my misery if possible?

I have had this piece of Aircraft for a number of years now & would like to know what actual type it is from & exactly what is it?
I was told whose Aircraft it was from & what Type but I suspect I may have been led down the Garden Path so will not divulge it at this stage - But it is or should be of WWII origin?

Anyway I have attached a picture of the offending Item - It is made entirely of a Light Alloy approximately 5 Inches in Diameter/5 Inches in Length with a Thick raised Band of Alloy roughly in the centre of the piece & both ends being flared out looking rather like a nozzle from a Rocket Motor.

There are 2 Groups of Markings - On one side there is clearly stamped AM1530 & on the other which seems to have a hole (Bullet?) between the Numbers and is badly damaged so they could either at a guess be: S004100/8004100/SU004100/8U004100 or 5U004100 - This may or may not be the complete sequence of Numbers/Letters due to the said Damage & limitations of my Eyesight!

Any Ideas to this Mystery?

Many Thanks - Keith