[Cory]

Originally Posted by DELurker

OK, then the best idea that I have is get a copy of the purchase specification. That will list out the alloy (7075) and the temper and any extra treatments and tolerances. If it's T6 or T651, then you're pretty well set using McMaster-Carr pricing. If it's T7351, try Ryerson for general pricing. Once you have that information, you can (probably) successfully explain your BOM pricing to an inspector.

Let's be real. There is no inspector in FIRST that is going to ask for proof of the temper aluminum you used, let alone even question what temper you used if you only listed "7075 Aluminum". Just use the McMaster pricing.