Warbird Information Exchange

We need the Seat from within a selector valve body, which is pretty generic for flaps and gear for late 40's Grummans (ours is a G-73 Mallard), so any of several valves would do. Anybody have anything like this or know where to find it (a valve body with seat No. 27581 is needed)?

Some selector valve part numbers that I believe would work are:

Grumman Aircraft #109515
Electrol # 25250

Thanks!

John