Strange wrench, looks like a rotary aircraft engine wrench...wonder why it says 'NASA' on it....
The weirdest things turn up at the flea....
It is shaped a lot like an ignition distributor hold down wrench. Automotive that is, I never got to work on a radial. But, NASA?
I never saw a 5/8 distributor wrench , but sure is shaped like one.May be to get under the cooling fins on the cylinder.
For the flux capacitor on the space shuttle?
Either that, or there is a 56 Chevy in low earth orbit....