which way does the arbor nut go?

[Bruno Frontera dela Cruz]

I am a little embarrassed to ask this but which way does the arbor nut go on a 1023 saw? One side of the nut has a shoulder and the other side is flat; which side goes against the blade washer?

THX

[Rich Engelhardt]

On my Ridgid TS3660, the saw came with the shoulder side of the nut facing in against the flange.
That's the way I've been putting it.

[Rick Moyer]

Don't be embarrassed. I have the 0691. I was having a problem with not being able to tighten a blade adequately that I had put on, until I realized I had the washer on wrong! The washer (if it has a shoulder) should go on shoulder-first, and then the nut also shoulder-first will fit into the washer hole.

IIRC I had a thin kerf rip blade on at the time and it wanted to spin on the arbor because I couldn't get it tight enough the way I had the washer on. I had to gently re-file the innermost threads:(