Thanks guys really appriciate the point in the right direction... Pitontheprowl.. thanks for the link I have had a look on there but it seems that they don't have a listing for the Devilbiss and there are no pics
and it does not say what sort of thread profile these parts are... so I am not 100% sure as to what I am looking at...
I will later drop them a email and see if they can help out as well