Treat the approved first article as the reference, not the drawing alone
A drawing states intent, but the approved first-run part (plus its inspection record) shows what the process actually produced and accepted. Keep that reference part, its photos and its dimensional report on file, and give the supplier the original job or PO number on every reorder instead of resubmitting the same files as if they were new.
Lock material, gauge and finish batch details, not just the spec
Two coils of the "same" aluminum grade can still differ slightly in temper or mill source between runs, and a repeat powder coat order can drift in color or gloss if it is not tied to the original batch or RAL code. State that the order is a reorder against a specific prior job so the supplier pulls the same material source and finish batch reference where possible, not just the same nominal spec.
Separate what is fair to renegotiate from what should not move
Fit, function and critical dimensions from the accepted first article should not shift between runs without a documented reason. Price is different: material index moves, quantity tier changes and finish minimum-order thresholds are all legitimate, fair triggers for a revised quote, and a supplier who cannot explain a reorder price change in those terms is not giving a real answer.
Put drawing changes through a visible change log, however small
A single hole moved, a tolerance tightened or a finish swapped between orders should show up as a numbered revision with a one-line reason, not a quiet edit to the same file name. Without that log, a buyer has no way to tell, six months later, whether a fit problem is a process drift or a drawing change nobody flagged.
Agree on reorder lead time and batch-level inspection before you need it
A repeat part on a known process should not need the same lead time as the first article, and asking for that number in advance avoids a schedule surprise on the next order. For parts with any cosmetic or fit risk, keep asking for batch-level inspection records on every run instead of only on the first one, since consistency is what a reorder is actually paying for.
| Input | Why it matters |
|---|---|
| Reference job or PO number | Ties the reorder to the exact accepted first article instead of a re-read of the drawing. |
| Material and finish batch | Same nominal spec is not the same as the same mill or coating batch; ask the supplier to match source where it matters. |
| Fit and critical dimensions | Should stay locked against the approved first article unless a drawing revision is issued. |
| Price triggers | Material index, quantity tier and finish minimum-order changes are fair reasons to revise price; unexplained changes are not. |
| Change log | Every drawing or spec change between orders should carry a revision number and a stated reason. |
| Reorder lead time and inspection | Agree on the repeat-run lead time and what inspection record (if any) accompanies each batch before the next PO is placed. |
Next step
Use the guide to prepare a cleaner inquiry, then attach the best available files through the RFQ form. If an item is unknown, say so directly so the first reply can separate quote assumptions from confirmed requirements.