NOS means New-Old Stock. It basically refers to old parts that have never been used. In the
case of keys, it's easy to tell that they've never been used, because usually they've never been
cut. A great many of the keys we stock are NOS, even the aftermarket blanks. That's because
many of them are either no longer made, or special order.
NOS does not mean that keys are original for your car! Keys made 10 years ago may be
called NOS, even though the car they fit was made 50 years ago. Keys made by a company
that never had anything to do with the manufacturer of your car could be NOS. NOS is good if
you can't get original keys, but original (OEM) keys are best.
OEM (Original Equipment Manufacturer) keys can be kind of decieving. You would think that
OEM keys would be the ones originally manufactured for your vehicle, and match the
appearance of the oriignals. However, strictly speaking, that's not true.
Briggs & Stratton manufactured keys & locks from most of the cars made in the USA from the
1930s on. However, over time the appearance of the keys changed. The logo on the keys
changed, and even the material of the keys changed at points. an OEM Briggs & Stratton key
might not have the logo for the period your car was made.
Briggs & Stratton made keys for General Motors for all of it;s cars up through the 1990s. The
period from 1935 to 1966 used the same type of key blank, but the look of the key changed
after WWII. Now GM sells "OEM" blanks to fit these cars, but they're not original to any of
them. They no longer carry the Briggs & Stratton logo or even the Rochester Products logo
that was GMs in house manufacturer of keys.
If you're looking for original keys for your vehicle, it's important to know what the keys looked
like. We can try to help with cars made in the USA, and have a wide variety or original blanks.