Thanks Marty for bringing it up, both the inside and outside on the button are interference fits.
I wish Vans would put one legged nutplates on the aft bottom of F-1263 B- it is impossible for me to get a nut and washer on there.
Edit : I took a 3/8" cheap wrench and bent it into a squared Z shape. I then ground it thin and glued a flat washer on the bottom so it would just hold a Ms21083-n3. I guess I could have welded a big washer on top for a pocket for an AN-960-10
I used a tiny bit of gel type superglue to tack the 5702-75-60 spacers onto the pushrod bearings. I put the spacer on a bolt, applied a few tiny drops, then slid it into the bearing from below so it could not contaminate the spherical surface.
Similarly the washer in the F-1219a flaperon mixer arm needs to be glued in place. Using the AN3-21 like page 32-9 step 3 helps line the plates up enough to get the flap linkage stabbed.
I glued the 2 AN960-10 washers to the inside of the WD-1215's also to do them.
On p 32-08 step 8, I think they meant to drill #12 partially down the #30 hole so the rivet can expand. You better have a drill stop because once the drillbit gets started it wants to go all the way through. I used a unibit instead. I impaled them on the flaperons while the epoxy set.
Post your tips!