

I dont think it’s a banjo fitting. Fairly certain banjo fittings are not meant to move once tightened down. Another poster is right though, if you take it to a hose shop, they will probably be able to cut the old hose off and crimp a new one on. Just google “hose shop in [your town]” and there’s likely to at least be one in the next town over. I live in a mid sized city and there are like 3.
There’s an area in the cascade range (western US, specifically oregon) that is a giant field of knapped obsidian, that was used as a training ground for young knappers, as well as a trading ground to trade knapped obsidian that has been found all over the western US. Not just miles, but many many miles. I’ll see if I can go find a link.