John,
I would email or call Ken at Badger and he will get one right out to you I am sure. Badger has the best customer service of any airbrush company without a doubt.
Here's their web address:
http://www.badger-airbrush.com/
About the tips and needles, there are usually three sizes, 1, 3 and 5 and the tips are also the same. The number 1 is the finest tip and the #5 is the broadest coverage. Most of us use the #1 tip and needle although some do use the #3 also.
The tips and needled are changed together so that you use a #1 tip with a #1 needle.
I hope this helps somewhat.
Mike
“Wisdom is the right use of knowledge. To know is not
to be wise. Many men know a great deal, and are all the greater fools
for it. There is no fool so great a fool as a knowing fool. But to know
how to use knowledge is to have wisdom. " Charles Spurgeon