Fine Tuning a 360 Magnum with a Brawler "Double Pumper"

So another quick question, I've seen two different things but are the 6-32 restrictors UNC? I have found 10-32 UNF but no 6-32UNF, only UNC. I've also found a set of blanks that are 6-32UNF but could that just be a typo?