"New Old Stock". NOS are original parts produced for the vehicle at the time of production by the original manufacturer, or vintage factory replacement parts sold by the original manufacturer.
NOS is not always better quality or condition (due to shelf wear), is often more expensive, and is usually but not always more correct for showing than aftermarket or restoration parts.
Vikki 1969 Goldenrod Yellow / black 400 convertible numbers matching
So...In the movie The Fast and the Furious...when the car blows up and the punk says, "NOS!" That's actually new old stock Mitsubishi parts blowing up?
Just kidding.
I know it wasn't nitrous oxide, because that's not explosive.
New old stock(NOS) can be anything that was NEVER USED(new) and is old(old stock). It can range from car parts to a candy bar laying on a shelf in an old store. They recently opened a hardware store that was closed in the 1950's with all the stock still on the shelves. Everything in the store can be considered NOS.
Yah, they auctioned it all off. You hear about NOS mostly when talking about car parts but that does not narrow the basic definition. The hardware in that store was NOS in it's purest form. The "new" in NOS means unused not literally new so yes, milk can be NOS. Jim