Glad to have you here, @V3iGuy!
At this time, this is not a function that can take place within QuickBooks Online because you can only use 1 SKU in both the purchase and selling the of item. In other words, there's no way to track multiple part numbers.
Check out our app store, and there are a number of apps that are great for tracking inventory!
Take a look and let me know if what you find. I'd love to hear if you're able to find a solution that's right for you.
