Originally Posted by paul4be
Possibly Pete, but the whole fitting seems slightly longer, although that is just trying work from various pics etc of fittings? If you are correct, that's going to be a pain as I have no way of identifying the thread to get another one cut. Oh well, sure it will get sorted somehow
The old AA fittings were longer, you might be able to pick on up from old stock at a local stockist.
If you take your current cylinder to a local machinist they should be able to measure it up & then cut one to fit your cover