I am using needle valves made by RSM Distribution. These are GREAT needle valves for control line and free flight applications. RSM obtained the dies for the old style SuperTiger 46 and 51 "fine thread" needle valves.

I am using these needle valves on a wide variety of engine types and sizes. My applications are Slow Stunt to Fast Combat, high performance freeflight, and SAM Radio Assist.
RSM is a small "cottage industry" manufacturer. The pricing for the assemblies ar $9-$16 +$5 shipping (+ sales tax if you are in California).

I have made it a point to lay in a large number of these needle valves, both complete assemblies and replacement needles. Because of the "cottage industry" nature of their manufactur, there is always the chance that they could go out of production with no source for replacements.

The last address I have for RSM distribution is 21899 Heliotrope Lane, Wildomar CA 92595. The phone number is (714) 931-6038
WWWrsmdistribution.com