I just got some AN reducer fittings from Russell but they are not what is shown in the catalog. I ordered 660020 and the description from Russell is this is a female to male B-nut reducer. However, the description on the back of the card is tube coupling nut w/flared reducer to AN male. I am confused, this looks like a tube nut and tube sleeve with AN fitting on the end of the sleeve. Did they change the design?
This probably will work but they have done away with the hex on the tube sleeve so when tightening a mating female, there is no way to hold the sleeve if it turns inside the nut.