Superceded specs
Superceded specs
(OP)
I have received a PO and print with a spec, my material supplier says that spec has been superseded by another. is it industry standard to accept superseded specs or do I have to get prior approval to deviate from the PO and print requirements?





RE: Superceded specs
Without knowing which spec you're talking about, I won't know for sure.
If it's AMS-QQ-A-250/5 Aluminum 2024 clad sheet versus QQ-A-250/5 Aluminum 2024 clad sheet, no problem.
If the old spec has been significantly modified by the superseding spec, then this could affect the intended result.
You won't know unless you compare the two or refer the matter to your customer who issued you the PO.
At least you supplier told you about it before shipping!
STF
RE: Superceded specs
This is where you need to find out from the customer whether there's a material impact to using the updated spec.
TTFN

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RE: Superceded specs
On the other hand, as IRstuff noted, if this part is used on a product whose design was certified based on specific material properties for that part, you should not use an alternate material without authorization. The correct approach would be to submit a written request to the customer for a formal design change or an allowance to use a substitute material for the existing purchase contract. If you deliver the finished part with non-conforming material certs, it is quite likely the customer's receiving QA will reject the parts, and your company will have to eat the cost.