AN-6 Dust Caps

I designed this part in FreeCAD, sliced in Cura, and printed on my Ender 3. I'm a total n00b and this is the first thing I'm uploading to thingiverse. I only just recently figured out the first thing about CAD, and how to use FreeCAD in particular... Before, I was learning the ropes of 3D printing using only files I found here on TV, so I figured I should give back!

I'm not sure if this will be of use to anyone, but here goes! This is a set of dust caps for a -6 AN (army/navy) hose fitting. The common thread size is 9/16-18 SAE, but it's usually referred to as AN-6. Found on aircraft and in my case, race cars. I'm pulling the engine out of my father's Lotus 7 to replace the clutch, and I don't want to leave the fuel and other fluid lines open. Dust caps to the rescue! Enjoy!