PSW (Part Sample Warrant) - When drawing and part numbers do not match
This is my first posting here, so please bear with me as I attempt to post my question.
I am relatively new to PPAP and PSW and work with my SQA department for PSW issues. When we started purchasing electronic components, our headquarters came up with an innovative numbering system that is creating a headache for us. We are a factory that is connected to our corporate division for design and support.
They use a 9 digit part number to specify the FFF of the component. This number is usually the same as the drawing number with the specifications for this part. However, to enhance global purchasing, when a specific manufacturer and mfr part number is picked, a 10th digit is added to the 9 digit number to indicate the manufacturer and an 11th digit is added to indicate the packaging (7" tape/reel vs 13" vs ammo-pak, etc). This combined 11 digit part number is used as our inventory control number as well as for purchasing from our suppliers. The suppliers are required to label their packaging with the same 11 digit part number. (e.g. 7G9781234 vs 7G978123456 where 5 is the mfr and 6 is packaging.)
The problem is that our corporate SQA says that aside from the drawing number to be shown on the PSW, the our part number should only be the 9 digit since the supplier must PPAP to the drawing (9 digit only). My issue is that the supplier sells us the parts using 11 digits since our PO have the 11 digits, therefore the PSW the supplier provides should reflect the 11 digit part number as sold to us.
Therefore, we have 2 sides to this question: 1) only refer to the 9 digit number since that is what is on the drawing or 2) refer to the 11 digit number since that is how the purchasing is handled.