I bought an alternator baracket set for my Max wedge project off of partslimited. And it was brand new and perfect to me, with both brackets the bolt and 3 spacers. Thick metal like stock and fit in every way it was meant to. Even had top on it, to show how it mounted. But it was advertised as NS1. I admit I don't know all the terms. I think NOS means new old stock but not having to be original. I see motor mounts saying this for 49.95 and has a carquest part number on it that I buy for 6 bucks. Or like the cuda nos road lamps for 30 bucks when you can get them for 7.41. But I don't know how to apply the NS1. would someone be so kind as to further my knowledge? Thanks for your help