|AN Fittings. Brass Union Nut.|
I used this as part of a primer line installation on a 0-320 Lycoming. It worked well, the challenge was attaching the cone to the copper tubing, a machine shop had to braze it. The nozzle ports needed a 1/8 npt tap run down the cylinder to allow enough thread engagement for the nozzle. The copper tubing is challenging to flare since it is so small, re-doing a flare was needed to make a leak free connection.
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The thread is 5/16-32. It will work with the AN4022-1 fitting.
Max working pressure would be around 100 psi.