Both NK and Standard Husky bars in .325 take the same dl count in all lengths. Both are 80dl for 20" bars, at least currently. Aftermarket bars can of course be different, as lots of saw brands use the "small Husky" mount pattern, and it may have changed over time.
I see that Baileys offer Husky branded bars that are 78dl though - this is a bit odd......
My 353 had a Husky branded 20" bar that took 78DL. Might be just us crazy Americans though.