That's an Apple Order Number. Nothing like that inside the computer itself. Best thing is cross reference something like MacTracker with the Model Identifier and Model Number.

@millersc beat me to it. That's an order number and its most definitely not on the system anywhere to pull it from. I also recommend cross referencing with MacTracker. That seems to be the most definitive source for those order numbers, other than maybe Apple directly.

I don't know if I 100% agree that is an order number, I would call that more a part number. Apple actually does provide a cheat sheet for laptops here, however I haven't seen one for desktops. I remember long long ago in a job far far away, when the serial number naming scheme was re-defined by apple, they did publish an article that would explain the new naming pattern, but the last 4 digits of your serial number should also be a unique model identifier as well.

If you have an account with Apple's DEP, you could look up order numbers.

http://deploy.apple.com

We do but that doesn't help with it being on the Mac. I was hoping it was stored somewhere on the mac but that doesn't seem to be the case. I could build a table to match up our serial numbers and all but that then requires maintenance. Again just looking to see if there was something and it looks there isn't.
Thanks

@dpodgors are you looking for this type of identifier: "MacBook Pro (Retina, 15-inch, Mid 2015)" or the order number you referenced earlier?

If you want the type that I sent, you can use the MacModelShelf script that Per Olofsson wrote:

MacModelShelf

I use it as an EA on our systems and it works great.

Thanks but i need the model number I have many other ways to get the "Model Identifier".

At one time I would have suggested looking into www.everymac.com, as they have a lookup page (using the Serial Number) to pull up Mac specs, including that order number. But they are using a Captcha on that page now to prevent robots, so there isn't a good way to automate it using curl it seems.
I seem to recall they have a downloadable database or file of some kind they maintain that has all the same information in it as the site, but I can't locate that at the moment.

Edit: EveryMac does offer an API for doing lookups, but its not free. More info here: https://www.everymac.com/api/register

If it were me, I'd go back to the Service Desk and ask what it is they need that number for. Hardly anyone pays attention to that number. Its an internal Apple identifier for the most part. I'm curious why its relevant to them. Maybe they think its something that its not?

To echo @mm2270 if you are ordering custom built machines, that model number is different anyway. At least every machine I've purchased has not had that model number anywhere on the box.

The model number is just a granular way to identify the CPU, amount of RAM and hard drive size (among other things). They thought, if it was available, it would help in identification.

@dpodgors you can grab all of that info out of the JSS with an API call. Why not go that way? And like I said, if you order Build To Order machines, the model number is typically a very generic number, like Z20 or something like that.

As @stevewood says, all that stuff - CPU type and speed, cache, memory, HDD/SSD size, etc - is all already captured. Why use a cryptic order number to try to decipher that instead of just using the info already captured by your management product? Maybe I'm just missing something, but it seems they are going at this the wrong way to me.

Again - I was just asking if it was possible. I'm not trying to debate the logicality of what another department was asking me for.

If you have a box lying around, apple does put the model on them. Every apple box should have it, actually (iPhone, iPad, anything with an apple logo on it should have one). Standard order items usually end (or at least used to) in the ll/a designation.