Union powder flask nozzle piece?

[DownNDirty]

Yesterday I was detecting in a field where Union troops camped one night and found this brass relic. A friend found a powder flask valve/nozzle there earler this year that was similar but not an exact match. If I am right the nozzle would have screwed onto the small threaded part on the top and the base would have attached to the flask.

 

[jewelerguy]

looks like it to me. missing the spout and the thumb lever is broken off

 

[CoilyGirl]

I don' t know why but I'm thinking it looks fuse-ish.

 

[NOLA_Ken]

looks like a flask top to me

 

[BosnMate]

Either powder or shot, more than likely powder. It might have accidentally got in someone's camp fire and that's why you are finding pieces.